Home / 25,719.60-38,579.40-11,861.04

Finding the Fourth Proportional to 25,719.60, 38,579.40 and 11,861.04

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Solution

The fourth proportional to 25,719.60, 38,579.40 and 11,861.04 is: 17,791.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,719.60 : 38,579.40 = 11,861.04 : x
  2. Step 2: Convert to fraction form
    25,719.60/38,579.40 = 11,861.04/x
  3. Step 3: Cross multiply
    25,719.60x = 38,579.40 × 11,861.04
  4. Step 4: Simplify right side
    25,719.60x = 457,591,806.58
  5. Step 5: Solve for x
    x = 457,591,806.58/25,719.60
  6. Step 6: Final answer
    x = 17,791.56

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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.