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Finding the Fourth Proportional to 27,191.11, 40,781.79 and 7,200.73

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Solution

The fourth proportional to 27,191.11, 40,781.79 and 7,200.73 is: 10,799.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,191.11 : 40,781.79 = 7,200.73 : x
  2. Step 2: Convert to fraction form
    27,191.11/40,781.79 = 7,200.73/x
  3. Step 3: Cross multiply
    27,191.11x = 40,781.79 × 7,200.73
  4. Step 4: Simplify right side
    27,191.11x = 293,658,658.71
  5. Step 5: Solve for x
    x = 293,658,658.71/27,191.11
  6. Step 6: Final answer
    x = 10,799.80

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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.