Home / 31,372.92-47,073.96-19,679.76

Finding the Fourth Proportional to 31,372.92, 47,073.96 and 19,679.76

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Solution

The fourth proportional to 31,372.92, 47,073.96 and 19,679.76 is: 29,528.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,372.92 : 47,073.96 = 19,679.76 : x
  2. Step 2: Convert to fraction form
    31,372.92/47,073.96 = 19,679.76/x
  3. Step 3: Cross multiply
    31,372.92x = 47,073.96 × 19,679.76
  4. Step 4: Simplify right side
    31,372.92x = 926,404,235.05
  5. Step 5: Solve for x
    x = 926,404,235.05/31,372.92
  6. Step 6: Final answer
    x = 29,528.79

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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.