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Finding the Fourth Proportional to 18,405.44, 25,398.95 and 10,229.02

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Solution

The fourth proportional to 18,405.44, 25,398.95 and 10,229.02 is: 14,115.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,405.44 : 25,398.95 = 10,229.02 : x
  2. Step 2: Convert to fraction form
    18,405.44/25,398.95 = 10,229.02/x
  3. Step 3: Cross multiply
    18,405.44x = 25,398.95 × 10,229.02
  4. Step 4: Simplify right side
    18,405.44x = 259,806,329.60
  5. Step 5: Solve for x
    x = 259,806,329.60/18,405.44
  6. Step 6: Final answer
    x = 14,115.73

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.