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Finding the Fourth Proportional to 38,086.61, 57,015.09 and 20,503.13

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Solution

The fourth proportional to 38,086.61, 57,015.09 and 20,503.13 is: 30,692.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,086.61 : 57,015.09 = 20,503.13 : x
  2. Step 2: Convert to fraction form
    38,086.61/57,015.09 = 20,503.13/x
  3. Step 3: Cross multiply
    38,086.61x = 57,015.09 × 20,503.13
  4. Step 4: Simplify right side
    38,086.61x = 1,168,987,517.16
  5. Step 5: Solve for x
    x = 1,168,987,517.16/38,086.61
  6. Step 6: Final answer
    x = 30,692.88

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