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Finding the Fourth Proportional to 16,103.50, 22,204.11 and 15,107.20

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Solution

The fourth proportional to 16,103.50, 22,204.11 and 15,107.20 is: 20,830.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,103.50 : 22,204.11 = 15,107.20 : x
  2. Step 2: Convert to fraction form
    16,103.50/22,204.11 = 15,107.20/x
  3. Step 3: Cross multiply
    16,103.50x = 22,204.11 × 15,107.20
  4. Step 4: Simplify right side
    16,103.50x = 335,441,930.59
  5. Step 5: Solve for x
    x = 335,441,930.59/16,103.50
  6. Step 6: Final answer
    x = 20,830.37

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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.