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Finding the Fourth Proportional to 18,441.15, 27,679.56 and 17,442.15

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Solution

The fourth proportional to 18,441.15, 27,679.56 and 17,442.15 is: 26,180.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,441.15 : 27,679.56 = 17,442.15 : x
  2. Step 2: Convert to fraction form
    18,441.15/27,679.56 = 17,442.15/x
  3. Step 3: Cross multiply
    18,441.15x = 27,679.56 × 17,442.15
  4. Step 4: Simplify right side
    18,441.15x = 482,791,037.45
  5. Step 5: Solve for x
    x = 482,791,037.45/18,441.15
  6. Step 6: Final answer
    x = 26,180.09

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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.