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Finding the Fourth Proportional to 38,007.90, 57,011.85 and 9,927.90

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Solution

The fourth proportional to 38,007.90, 57,011.85 and 9,927.90 is: 14,891.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,007.90 : 57,011.85 = 9,927.90 : x
  2. Step 2: Convert to fraction form
    38,007.90/57,011.85 = 9,927.90/x
  3. Step 3: Cross multiply
    38,007.90x = 57,011.85 × 9,927.90
  4. Step 4: Simplify right side
    38,007.90x = 566,007,945.62
  5. Step 5: Solve for x
    x = 566,007,945.62/38,007.90
  6. Step 6: Final answer
    x = 14,891.85

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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.