Home / 20,819.85-31,234.77-6,029.79

Finding the Fourth Proportional to 20,819.85, 31,234.77 and 6,029.79

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Solution

The fourth proportional to 20,819.85, 31,234.77 and 6,029.79 is: 9,046.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,819.85 : 31,234.77 = 6,029.79 : x
  2. Step 2: Convert to fraction form
    20,819.85/31,234.77 = 6,029.79/x
  3. Step 3: Cross multiply
    20,819.85x = 31,234.77 × 6,029.79
  4. Step 4: Simplify right side
    20,819.85x = 188,339,103.80
  5. Step 5: Solve for x
    x = 188,339,103.80/20,819.85
  6. Step 6: Final answer
    x = 9,046.13

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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.