Home / 22,403.68-30,910.11-12,711.53

Finding the Fourth Proportional to 22,403.68, 30,910.11 and 12,711.53

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Solution

The fourth proportional to 22,403.68, 30,910.11 and 12,711.53 is: 17,537.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,403.68 : 30,910.11 = 12,711.53 : x
  2. Step 2: Convert to fraction form
    22,403.68/30,910.11 = 12,711.53/x
  3. Step 3: Cross multiply
    22,403.68x = 30,910.11 × 12,711.53
  4. Step 4: Simplify right side
    22,403.68x = 392,914,790.57
  5. Step 5: Solve for x
    x = 392,914,790.57/22,403.68
  6. Step 6: Final answer
    x = 17,537.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.