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Finding the Fourth Proportional to 18,101.78, 27,150.24 and 4,955.48

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Solution

The fourth proportional to 18,101.78, 27,150.24 and 4,955.48 is: 7,432.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,101.78 : 27,150.24 = 4,955.48 : x
  2. Step 2: Convert to fraction form
    18,101.78/27,150.24 = 4,955.48/x
  3. Step 3: Cross multiply
    18,101.78x = 27,150.24 × 4,955.48
  4. Step 4: Simplify right side
    18,101.78x = 134,542,471.32
  5. Step 5: Solve for x
    x = 134,542,471.32/18,101.78
  6. Step 6: Final answer
    x = 7,432.55

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.