Home / 31,584.60-47,374.17-12,866.61

Finding the Fourth Proportional to 31,584.60, 47,374.17 and 12,866.61

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Solution

The fourth proportional to 31,584.60, 47,374.17 and 12,866.61 is: 19,298.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,584.60 : 47,374.17 = 12,866.61 : x
  2. Step 2: Convert to fraction form
    31,584.60/47,374.17 = 12,866.61/x
  3. Step 3: Cross multiply
    31,584.60x = 47,374.17 × 12,866.61
  4. Step 4: Simplify right side
    31,584.60x = 609,545,098.87
  5. Step 5: Solve for x
    x = 609,545,098.87/31,584.60
  6. Step 6: Final answer
    x = 19,298.81

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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.