Finding the Third Proportional to 21,765 and 47,490
Calculator
Solution
The third proportional to 21,765 and 47,490 is: 103,620.50
Step by Step Solution
- Step 1: Write the proportion equation
21,765 : 47,490 = 47,490 : x - Step 2: Convert to fraction form
21,765/47,490 = 47,490/x - Step 3: Cross multiply
21,765x = 47,490 × 47,490 - Step 4: Simplify right side
21,765x = 2,255,300,100 - Step 5: Solve for x
x = 2,255,300,100/21,765 - Step 6: Final answer
x = 103,620.50
Related Problems
Find third proportional to 10,882.50 and 23,745
Half scale
Find third proportional to 43,530 and 94,980
Double scale
Find third proportional to 21,767 and 47,494
Similar ratio
Find third proportional to 32,647.50 and 71,235
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.