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Finding the Fourth Proportional to 17,630.20, 26,438.44 and 8,859

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Solution

The fourth proportional to 17,630.20, 26,438.44 and 8,859 is: 13,285.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,630.20 : 26,438.44 = 8,859 : x
  2. Step 2: Convert to fraction form
    17,630.20/26,438.44 = 8,859/x
  3. Step 3: Cross multiply
    17,630.20x = 26,438.44 × 8,859
  4. Step 4: Simplify right side
    17,630.20x = 234,218,139.96
  5. Step 5: Solve for x
    x = 234,218,139.96/17,630.20
  6. Step 6: Final answer
    x = 13,285.05

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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.