Home / 31,451.22-47,177.31-8,077.14

Finding the Fourth Proportional to 31,451.22, 47,177.31 and 8,077.14

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Solution

The fourth proportional to 31,451.22, 47,177.31 and 8,077.14 is: 12,115.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,451.22 : 47,177.31 = 8,077.14 : x
  2. Step 2: Convert to fraction form
    31,451.22/47,177.31 = 8,077.14/x
  3. Step 3: Cross multiply
    31,451.22x = 47,177.31 × 8,077.14
  4. Step 4: Simplify right side
    31,451.22x = 381,057,737.69
  5. Step 5: Solve for x
    x = 381,057,737.69/31,451.22
  6. Step 6: Final answer
    x = 12,115.83

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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.