Home / 31,442.91-47,149.20-14,788.86

Finding the Fourth Proportional to 31,442.91, 47,149.20 and 14,788.86

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Solution

The fourth proportional to 31,442.91, 47,149.20 and 14,788.86 is: 22,176.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,442.91 : 47,149.20 = 14,788.86 : x
  2. Step 2: Convert to fraction form
    31,442.91/47,149.20 = 14,788.86/x
  3. Step 3: Cross multiply
    31,442.91x = 47,149.20 × 14,788.86
  4. Step 4: Simplify right side
    31,442.91x = 697,282,917.91
  5. Step 5: Solve for x
    x = 697,282,917.91/31,442.91
  6. Step 6: Final answer
    x = 22,176.16

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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.