4.53 is what percent of 21 - 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 21 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 21, so we can write it down as 100%=21.
4. We know, that x% equals 4.53 of the output value, so we can write it down as x%=4.53.
5. Now we have two simple equations:
1) 100%=21
2) x%=4.53
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%=21/4.53
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for 4.53 is what percent of 21

100%/x%=21/4.53
(100/x)*x=(21/4.53)*x       - we multiply both sides of the equation by x
100=4.635761589404*x       - we divide both sides of the equation by (4.635761589404) to get x
100/4.635761589404=x
21.571428571429=x
x=21.571428571429

now we have:
4.53 is 21.571428571429% of 21