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Finding the Fourth Proportional to 20,037.12, 30,012 and 11,267.52

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Solution

The fourth proportional to 20,037.12, 30,012 and 11,267.52 is: 16,876.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,037.12 : 30,012 = 11,267.52 : x
  2. Step 2: Convert to fraction form
    20,037.12/30,012 = 11,267.52/x
  3. Step 3: Cross multiply
    20,037.12x = 30,012 × 11,267.52
  4. Step 4: Simplify right side
    20,037.12x = 338,160,810.24
  5. Step 5: Solve for x
    x = 338,160,810.24/20,037.12
  6. Step 6: Final answer
    x = 16,876.72

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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.