Home / 31,855.29-47,657.18-28,115.52

Finding the Fourth Proportional to 31,855.29, 47,657.18 and 28,115.52

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Solution

The fourth proportional to 31,855.29, 47,657.18 and 28,115.52 is: 42,062.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,855.29 : 47,657.18 = 28,115.52 : x
  2. Step 2: Convert to fraction form
    31,855.29/47,657.18 = 28,115.52/x
  3. Step 3: Cross multiply
    31,855.29x = 47,657.18 × 28,115.52
  4. Step 4: Simplify right side
    31,855.29x = 1,339,906,256.86
  5. Step 5: Solve for x
    x = 1,339,906,256.86/31,855.29
  6. Step 6: Final answer
    x = 42,062.28

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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.