Home / 31,424.61-47,149.97-12,717.87

Finding the Fourth Proportional to 31,424.61, 47,149.97 and 12,717.87

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Solution

The fourth proportional to 31,424.61, 47,149.97 and 12,717.87 is: 19,082.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,424.61 : 47,149.97 = 12,717.87 : x
  2. Step 2: Convert to fraction form
    31,424.61/47,149.97 = 12,717.87/x
  3. Step 3: Cross multiply
    31,424.61x = 47,149.97 × 12,717.87
  4. Step 4: Simplify right side
    31,424.61x = 599,647,188.96
  5. Step 5: Solve for x
    x = 599,647,188.96/31,424.61
  6. Step 6: Final answer
    x = 19,082.09

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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.