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Finding the Fourth Proportional to 27,489.80, 41,237.64 and 8,765.42

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Solution

The fourth proportional to 27,489.80, 41,237.64 and 8,765.42 is: 13,149.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,489.80 : 41,237.64 = 8,765.42 : x
  2. Step 2: Convert to fraction form
    27,489.80/41,237.64 = 8,765.42/x
  3. Step 3: Cross multiply
    27,489.80x = 41,237.64 × 8,765.42
  4. Step 4: Simplify right side
    27,489.80x = 361,465,234.41
  5. Step 5: Solve for x
    x = 361,465,234.41/27,489.80
  6. Step 6: Final answer
    x = 13,149.07

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1.5x scale

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.