Home / 31,481.54-47,170.99-18,344.98

Finding the Fourth Proportional to 31,481.54, 47,170.99 and 18,344.98

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Solution

The fourth proportional to 31,481.54, 47,170.99 and 18,344.98 is: 27,487.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,481.54 : 47,170.99 = 18,344.98 : x
  2. Step 2: Convert to fraction form
    31,481.54/47,170.99 = 18,344.98/x
  3. Step 3: Cross multiply
    31,481.54x = 47,170.99 × 18,344.98
  4. Step 4: Simplify right side
    31,481.54x = 865,350,868.13
  5. Step 5: Solve for x
    x = 865,350,868.13/31,481.54
  6. Step 6: Final answer
    x = 27,487.56

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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.