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Finding the Fourth Proportional to 27,377.78, 41,066.70 and 8,909.78

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Solution

The fourth proportional to 27,377.78, 41,066.70 and 8,909.78 is: 13,364.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,377.78 : 41,066.70 = 8,909.78 : x
  2. Step 2: Convert to fraction form
    27,377.78/41,066.70 = 8,909.78/x
  3. Step 3: Cross multiply
    27,377.78x = 41,066.70 × 8,909.78
  4. Step 4: Simplify right side
    27,377.78x = 365,895,262.33
  5. Step 5: Solve for x
    x = 365,895,262.33/27,377.78
  6. Step 6: Final answer
    x = 13,364.68

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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.