Home / 31,909.23-47,863.85-14,358.55

Finding the Fourth Proportional to 31,909.23, 47,863.85 and 14,358.55

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Solution

The fourth proportional to 31,909.23, 47,863.85 and 14,358.55 is: 21,537.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,909.23 : 47,863.85 = 14,358.55 : x
  2. Step 2: Convert to fraction form
    31,909.23/47,863.85 = 14,358.55/x
  3. Step 3: Cross multiply
    31,909.23x = 47,863.85 × 14,358.55
  4. Step 4: Simplify right side
    31,909.23x = 687,255,483.42
  5. Step 5: Solve for x
    x = 687,255,483.42/31,909.23
  6. Step 6: Final answer
    x = 21,537.83

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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.