Question

A fund drive announces that it has raised $4,376, which is 20% of it's goal. How much more must be raised?

Answer 1

Since 20% of a goal is 1/5 of the whole thing, then we must multiply 4376 by 4, since 1/5 + 4/5 = 5/5.
4376 * 4 = 17504
So the fund drive must raise $17504 more.