Finding the Third Proportional to 21,700 and 33,190
Calculator
Solution
The third proportional to 21,700 and 33,190 is: 50,763.88
Step by Step Solution
- Step 1: Write the proportion equation
21,700 : 33,190 = 33,190 : x - Step 2: Convert to fraction form
21,700/33,190 = 33,190/x - Step 3: Cross multiply
21,700x = 33,190 × 33,190 - Step 4: Simplify right side
21,700x = 1,101,576,100 - Step 5: Solve for x
x = 1,101,576,100/21,700 - Step 6: Final answer
x = 50,763.88
Related Problems
Find third proportional to 10,850 and 16,595
Half scale
Find third proportional to 43,400 and 66,380
Double scale
Find third proportional to 21,702 and 33,193
Similar ratio
Find third proportional to 32,550 and 49,785
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.