Home / 31,456.15-47,192.42-11,734.88

Finding the Fourth Proportional to 31,456.15, 47,192.42 and 11,734.88

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Solution

The fourth proportional to 31,456.15, 47,192.42 and 11,734.88 is: 17,605.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,456.15 : 47,192.42 = 11,734.88 : x
  2. Step 2: Convert to fraction form
    31,456.15/47,192.42 = 11,734.88/x
  3. Step 3: Cross multiply
    31,456.15x = 47,192.42 × 11,734.88
  4. Step 4: Simplify right side
    31,456.15x = 553,797,178.98
  5. Step 5: Solve for x
    x = 553,797,178.98/31,456.15
  6. Step 6: Final answer
    x = 17,605.37

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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.