Home / 31,778.30-47,667.82-9,591.90

Finding the Fourth Proportional to 31,778.30, 47,667.82 and 9,591.90

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Solution

The fourth proportional to 31,778.30, 47,667.82 and 9,591.90 is: 14,387.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,778.30 : 47,667.82 = 9,591.90 : x
  2. Step 2: Convert to fraction form
    31,778.30/47,667.82 = 9,591.90/x
  3. Step 3: Cross multiply
    31,778.30x = 47,667.82 × 9,591.90
  4. Step 4: Simplify right side
    31,778.30x = 457,224,962.66
  5. Step 5: Solve for x
    x = 457,224,962.66/31,778.30
  6. Step 6: Final answer
    x = 14,387.96

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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.