Home / 38,418-78,732

Finding the Third Proportional to 38,418 and 78,732

Calculator

Solution

The third proportional to 38,418 and 78,732 is: 161,349.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,418 : 78,732 = 78,732 : x
  2. Step 2: Convert to fraction form
    38,418/78,732 = 78,732/x
  3. Step 3: Cross multiply
    38,418x = 78,732 × 78,732
  4. Step 4: Simplify right side
    38,418x = 6,198,727,824
  5. Step 5: Solve for x
    x = 6,198,727,824/38,418
  6. Step 6: Final answer
    x = 161,349.57

Related Problems

Find third proportional to 19,209 and 39,366
Half scale
Find third proportional to 76,836 and 157,464
Double scale
Find third proportional to 38,420 and 78,736
Similar ratio
Find third proportional to 57,627 and 118,098
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.05) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.