Home / 18,416-38,800

Finding the Third Proportional to 18,416 and 38,800

Calculator

Solution

The third proportional to 18,416 and 38,800 is: 81,746.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,416 : 38,800 = 38,800 : x
  2. Step 2: Convert to fraction form
    18,416/38,800 = 38,800/x
  3. Step 3: Cross multiply
    18,416x = 38,800 × 38,800
  4. Step 4: Simplify right side
    18,416x = 1,505,440,000
  5. Step 5: Solve for x
    x = 1,505,440,000/18,416
  6. Step 6: Final answer
    x = 81,746.31

Related Problems

Find third proportional to 9,208 and 19,400
Half scale
Find third proportional to 36,832 and 77,600
Double scale
Find third proportional to 18,418 and 38,804
Similar ratio
Find third proportional to 27,624 and 58,200
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.