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Finding the Fourth Proportional to 20,295.92, 30,436.11 and 9,759.29

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Solution

The fourth proportional to 20,295.92, 30,436.11 and 9,759.29 is: 14,635.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,295.92 : 30,436.11 = 9,759.29 : x
  2. Step 2: Convert to fraction form
    20,295.92/30,436.11 = 9,759.29/x
  3. Step 3: Cross multiply
    20,295.92x = 30,436.11 × 9,759.29
  4. Step 4: Simplify right side
    20,295.92x = 297,034,671.78
  5. Step 5: Solve for x
    x = 297,034,671.78/20,295.92
  6. Step 6: Final answer
    x = 14,635.19

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1.5x scale

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.