21 is what percent of 469 - step by step solution

To get the solution, we are looking for, we need to point out what we know.

1. We assume, that the number 469 is 100% - because it's the output value of the task.
2. We assume, that x is the value we are looking for.
3. If 100% equals 469, so we can write it down as 100%=469.
4. We know, that x% equals 21 of the output value, so we can write it down as x%=21.
5. Now we have two simple equations:
1) 100%=469
2) x%=21
where left sides of both of them have the same units, and both right sides have the same units, so we can do something like that:
100%/x%=469/21
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for 21 is what percent of 469

100%/x%=469/21
(100/x)*x=(469/21)*x       - we multiply both sides of the equation by x
100=22.333333333333*x       - we divide both sides of the equation by (22.333333333333) to get x
100/22.333333333333=x
4.4776119402985=x
x=4.4776119402985

now we have:
21 is 4.4776119402985% of 469