Home / 31,879.68-47,819.52-11,103.36

Finding the Fourth Proportional to 31,879.68, 47,819.52 and 11,103.36

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Solution

The fourth proportional to 31,879.68, 47,819.52 and 11,103.36 is: 16,655.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,879.68 : 47,819.52 = 11,103.36 : x
  2. Step 2: Convert to fraction form
    31,879.68/47,819.52 = 11,103.36/x
  3. Step 3: Cross multiply
    31,879.68x = 47,819.52 × 11,103.36
  4. Step 4: Simplify right side
    31,879.68x = 530,957,345.59
  5. Step 5: Solve for x
    x = 530,957,345.59/31,879.68
  6. Step 6: Final answer
    x = 16,655.04

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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.