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Finding the Fourth Proportional to 38,993.12, 58,489.69 and 10,917.31

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Solution

The fourth proportional to 38,993.12, 58,489.69 and 10,917.31 is: 16,375.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,993.12 : 58,489.69 = 10,917.31 : x
  2. Step 2: Convert to fraction form
    38,993.12/58,489.69 = 10,917.31/x
  3. Step 3: Cross multiply
    38,993.12x = 58,489.69 × 10,917.31
  4. Step 4: Simplify right side
    38,993.12x = 638,549,904.02
  5. Step 5: Solve for x
    x = 638,549,904.02/38,993.12
  6. Step 6: Final answer
    x = 16,375.96

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