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Finding the Fourth Proportional to 27,200.78, 40,805.28 and 9,666.44

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Solution

The fourth proportional to 27,200.78, 40,805.28 and 9,666.44 is: 14,501.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,200.78 : 40,805.28 = 9,666.44 : x
  2. Step 2: Convert to fraction form
    27,200.78/40,805.28 = 9,666.44/x
  3. Step 3: Cross multiply
    27,200.78x = 40,805.28 × 9,666.44
  4. Step 4: Simplify right side
    27,200.78x = 394,441,790.80
  5. Step 5: Solve for x
    x = 394,441,790.80/27,200.78
  6. Step 6: Final answer
    x = 14,501.12

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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.