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Finding the Fourth Proportional to 25,579.89, 38,381.04 and 8,951.94

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Solution

The fourth proportional to 25,579.89, 38,381.04 and 8,951.94 is: 13,431.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,579.89 : 38,381.04 = 8,951.94 : x
  2. Step 2: Convert to fraction form
    25,579.89/38,381.04 = 8,951.94/x
  3. Step 3: Cross multiply
    25,579.89x = 38,381.04 × 8,951.94
  4. Step 4: Simplify right side
    25,579.89x = 343,584,767.22
  5. Step 5: Solve for x
    x = 343,584,767.22/25,579.89
  6. Step 6: Final answer
    x = 13,431.83

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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.