Home / 19,540.85-29,310.58-8,288.96

Finding the Fourth Proportional to 19,540.85, 29,310.58 and 8,288.96

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Solution

The fourth proportional to 19,540.85, 29,310.58 and 8,288.96 is: 12,433.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,540.85 : 29,310.58 = 8,288.96 : x
  2. Step 2: Convert to fraction form
    19,540.85/29,310.58 = 8,288.96/x
  3. Step 3: Cross multiply
    19,540.85x = 29,310.58 × 8,288.96
  4. Step 4: Simplify right side
    19,540.85x = 242,954,037.20
  5. Step 5: Solve for x
    x = 242,954,037.20/19,540.85
  6. Step 6: Final answer
    x = 12,433.14

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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.