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Finding the Fourth Proportional to 38,380.74, 57,487.76 and 18,617.76

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Solution

The fourth proportional to 38,380.74, 57,487.76 and 18,617.76 is: 27,886.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,380.74 : 57,487.76 = 18,617.76 : x
  2. Step 2: Convert to fraction form
    38,380.74/57,487.76 = 18,617.76/x
  3. Step 3: Cross multiply
    38,380.74x = 57,487.76 × 18,617.76
  4. Step 4: Simplify right side
    38,380.74x = 1,070,293,318.62
  5. Step 5: Solve for x
    x = 1,070,293,318.62/38,380.74
  6. Step 6: Final answer
    x = 27,886.21

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