Home / 31,481.72-47,207.52-18,337.84

Finding the Fourth Proportional to 31,481.72, 47,207.52 and 18,337.84

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Solution

The fourth proportional to 31,481.72, 47,207.52 and 18,337.84 is: 27,497.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,481.72 : 47,207.52 = 18,337.84 : x
  2. Step 2: Convert to fraction form
    31,481.72/47,207.52 = 18,337.84/x
  3. Step 3: Cross multiply
    31,481.72x = 47,207.52 × 18,337.84
  4. Step 4: Simplify right side
    31,481.72x = 865,683,948.56
  5. Step 5: Solve for x
    x = 865,683,948.56/31,481.72
  6. Step 6: Final answer
    x = 27,497.99

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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.