Home / 31,587.08-47,380.86-9,399.88

Finding the Fourth Proportional to 31,587.08, 47,380.86 and 9,399.88

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Solution

The fourth proportional to 31,587.08, 47,380.86 and 9,399.88 is: 14,099.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,587.08 : 47,380.86 = 9,399.88 : x
  2. Step 2: Convert to fraction form
    31,587.08/47,380.86 = 9,399.88/x
  3. Step 3: Cross multiply
    31,587.08x = 47,380.86 × 9,399.88
  4. Step 4: Simplify right side
    31,587.08x = 445,374,398.30
  5. Step 5: Solve for x
    x = 445,374,398.30/31,587.08
  6. Step 6: Final answer
    x = 14,099.89

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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.