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Finding the Fourth Proportional to 20,495.39, 30,737.01 and 8,805.88

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Solution

The fourth proportional to 20,495.39, 30,737.01 and 8,805.88 is: 13,206.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,495.39 : 30,737.01 = 8,805.88 : x
  2. Step 2: Convert to fraction form
    20,495.39/30,737.01 = 8,805.88/x
  3. Step 3: Cross multiply
    20,495.39x = 30,737.01 × 8,805.88
  4. Step 4: Simplify right side
    20,495.39x = 270,666,267.93
  5. Step 5: Solve for x
    x = 270,666,267.93/20,495.39
  6. Step 6: Final answer
    x = 13,206.20

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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.