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Finding the Fourth Proportional to 38,485.98, 57,730.59 and 12,190.14

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Solution

The fourth proportional to 38,485.98, 57,730.59 and 12,190.14 is: 18,285.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,485.98 : 57,730.59 = 12,190.14 : x
  2. Step 2: Convert to fraction form
    38,485.98/57,730.59 = 12,190.14/x
  3. Step 3: Cross multiply
    38,485.98x = 57,730.59 × 12,190.14
  4. Step 4: Simplify right side
    38,485.98x = 703,743,974.38
  5. Step 5: Solve for x
    x = 703,743,974.38/38,485.98
  6. Step 6: Final answer
    x = 18,285.72

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