Home / 31,820.85-47,737.42-12,097.87

Finding the Fourth Proportional to 31,820.85, 47,737.42 and 12,097.87

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Solution

The fourth proportional to 31,820.85, 47,737.42 and 12,097.87 is: 18,149.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,820.85 : 47,737.42 = 12,097.87 : x
  2. Step 2: Convert to fraction form
    31,820.85/47,737.42 = 12,097.87/x
  3. Step 3: Cross multiply
    31,820.85x = 47,737.42 × 12,097.87
  4. Step 4: Simplify right side
    31,820.85x = 577,521,101.30
  5. Step 5: Solve for x
    x = 577,521,101.30/31,820.85
  6. Step 6: Final answer
    x = 18,149.14

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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.