Home / 31,472.40-47,179.44-15,871.92

Finding the Fourth Proportional to 31,472.40, 47,179.44 and 15,871.92

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Solution

The fourth proportional to 31,472.40, 47,179.44 and 15,871.92 is: 23,793.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,472.40 : 47,179.44 = 15,871.92 : x
  2. Step 2: Convert to fraction form
    31,472.40/47,179.44 = 15,871.92/x
  3. Step 3: Cross multiply
    31,472.40x = 47,179.44 × 15,871.92
  4. Step 4: Simplify right side
    31,472.40x = 748,828,297.32
  5. Step 5: Solve for x
    x = 748,828,297.32/31,472.40
  6. Step 6: Final answer
    x = 23,793.17

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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.