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Finding the Fourth Proportional to 20,005, 27,606.57 and 11,052.88

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Solution

The fourth proportional to 20,005, 27,606.57 and 11,052.88 is: 15,252.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,005 : 27,606.57 = 11,052.88 : x
  2. Step 2: Convert to fraction form
    20,005/27,606.57 = 11,052.88/x
  3. Step 3: Cross multiply
    20,005x = 27,606.57 × 11,052.88
  4. Step 4: Simplify right side
    20,005x = 305,132,105.42
  5. Step 5: Solve for x
    x = 305,132,105.42/20,005
  6. Step 6: Final answer
    x = 15,252.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.