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Finding the Fourth Proportional to 38,143.65, 57,177.48 and 18,118.02

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Solution

The fourth proportional to 38,143.65, 57,177.48 and 18,118.02 is: 27,158.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,143.65 : 57,177.48 = 18,118.02 : x
  2. Step 2: Convert to fraction form
    38,143.65/57,177.48 = 18,118.02/x
  3. Step 3: Cross multiply
    38,143.65x = 57,177.48 × 18,118.02
  4. Step 4: Simplify right side
    38,143.65x = 1,035,942,726.19
  5. Step 5: Solve for x
    x = 1,035,942,726.19/38,143.65
  6. Step 6: Final answer
    x = 27,158.98

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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.