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Finding the Fourth Proportional to 27,700.20, 41,542.20 and 9,928.80

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Solution

The fourth proportional to 27,700.20, 41,542.20 and 9,928.80 is: 14,890.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,700.20 : 41,542.20 = 9,928.80 : x
  2. Step 2: Convert to fraction form
    27,700.20/41,542.20 = 9,928.80/x
  3. Step 3: Cross multiply
    27,700.20x = 41,542.20 × 9,928.80
  4. Step 4: Simplify right side
    27,700.20x = 412,464,195.36
  5. Step 5: Solve for x
    x = 412,464,195.36/27,700.20
  6. Step 6: Final answer
    x = 14,890.30

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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.