Home / 31,769.76-47,654.64-13,046.61

Finding the Fourth Proportional to 31,769.76, 47,654.64 and 13,046.61

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Solution

The fourth proportional to 31,769.76, 47,654.64 and 13,046.61 is: 19,569.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,769.76 : 47,654.64 = 13,046.61 : x
  2. Step 2: Convert to fraction form
    31,769.76/47,654.64 = 13,046.61/x
  3. Step 3: Cross multiply
    31,769.76x = 47,654.64 × 13,046.61
  4. Step 4: Simplify right side
    31,769.76x = 621,731,502.77
  5. Step 5: Solve for x
    x = 621,731,502.77/31,769.76
  6. Step 6: Final answer
    x = 19,569.92

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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.