21 is what percent of 301 - 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 301 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 301, so we can write it down as 100%=301.
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%=301
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%=301/21
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 301

100%/x%=301/21
(100/x)*x=(301/21)*x       - we multiply both sides of the equation by x
100=14.333333333333*x       - we divide both sides of the equation by (14.333333333333) to get x
100/14.333333333333=x
6.9767441860465=x
x=6.9767441860465

now we have:
21 is 6.9767441860465% of 301