Home / 31,539.30-47,251.54-18,351.69

Finding the Fourth Proportional to 31,539.30, 47,251.54 and 18,351.69

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Solution

The fourth proportional to 31,539.30, 47,251.54 and 18,351.69 is: 27,494.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,539.30 : 47,251.54 = 18,351.69 : x
  2. Step 2: Convert to fraction form
    31,539.30/47,251.54 = 18,351.69/x
  3. Step 3: Cross multiply
    31,539.30x = 47,251.54 × 18,351.69
  4. Step 4: Simplify right side
    31,539.30x = 867,145,614.10
  5. Step 5: Solve for x
    x = 867,145,614.10/31,539.30
  6. Step 6: Final answer
    x = 27,494.13

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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.