270 is 21 percent of what number? (21% of what number is 270?)

270 is 21 percent of what number?

"270 is 21 percent of what number?" is a word problem where the answer is a number. Specifically, if you calculate 21 percent of number (x), you will get 270. Thus, you can illustrate the problem "270 is 21 percent of what number (x)" like this:

21% of x = 270

To calculate 21 percent of a number, we multiply the number by 21 and then divide by 100. Therefore, we can make the following function:

		21 ∗ x
		100

= 270

To solve for x, we first multiply both sides by 100 and then divide both sides by 21 to get the x = 1285.71. Therefore, the answer to 270 is 21 percent of what number? is:

1285.71

If we substitue "what number" in the question "270 is 21 percent of what number?" with 1285.71, we get this sentence: 270 is 21 percent of 1285.71. Since this statement is true, we know that our answer is correct.

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