Home / 31,917.39-47,876.14-13,176.86

Finding the Fourth Proportional to 31,917.39, 47,876.14 and 13,176.86

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Solution

The fourth proportional to 31,917.39, 47,876.14 and 13,176.86 is: 19,765.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,917.39 : 47,876.14 = 13,176.86 : x
  2. Step 2: Convert to fraction form
    31,917.39/47,876.14 = 13,176.86/x
  3. Step 3: Cross multiply
    31,917.39x = 47,876.14 × 13,176.86
  4. Step 4: Simplify right side
    31,917.39x = 630,857,008.55
  5. Step 5: Solve for x
    x = 630,857,008.55/31,917.39
  6. Step 6: Final answer
    x = 19,765.31

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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.