Home / 31,419.92-47,125.02-20,404.73

Finding the Fourth Proportional to 31,419.92, 47,125.02 and 20,404.73

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Solution

The fourth proportional to 31,419.92, 47,125.02 and 20,404.73 is: 30,603.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,419.92 : 47,125.02 = 20,404.73 : x
  2. Step 2: Convert to fraction form
    31,419.92/47,125.02 = 20,404.73/x
  3. Step 3: Cross multiply
    31,419.92x = 47,125.02 × 20,404.73
  4. Step 4: Simplify right side
    31,419.92x = 961,573,309.34
  5. Step 5: Solve for x
    x = 961,573,309.34/31,419.92
  6. Step 6: Final answer
    x = 30,603.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.