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Finding the Fourth Proportional to 27,117.59, 40,686.71 and 13,961.57

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Solution

The fourth proportional to 27,117.59, 40,686.71 and 13,961.57 is: 20,947.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,117.59 : 40,686.71 = 13,961.57 : x
  2. Step 2: Convert to fraction form
    27,117.59/40,686.71 = 13,961.57/x
  3. Step 3: Cross multiply
    27,117.59x = 40,686.71 × 13,961.57
  4. Step 4: Simplify right side
    27,117.59x = 568,050,076.49
  5. Step 5: Solve for x
    x = 568,050,076.49/27,117.59
  6. Step 6: Final answer
    x = 20,947.66

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