Home / 31,961.92-47,976.96-28,287.52

Finding the Fourth Proportional to 31,961.92, 47,976.96 and 28,287.52

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Solution

The fourth proportional to 31,961.92, 47,976.96 and 28,287.52 is: 42,461.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,961.92 : 47,976.96 = 28,287.52 : x
  2. Step 2: Convert to fraction form
    31,961.92/47,976.96 = 28,287.52/x
  3. Step 3: Cross multiply
    31,961.92x = 47,976.96 × 28,287.52
  4. Step 4: Simplify right side
    31,961.92x = 1,357,149,215.54
  5. Step 5: Solve for x
    x = 1,357,149,215.54/31,961.92
  6. Step 6: Final answer
    x = 42,461.44

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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.