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Finding the Fourth Proportional to 31,668.91, 43,701.28 and 17,520.91

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Solution

The fourth proportional to 31,668.91, 43,701.28 and 17,520.91 is: 24,177.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,668.91 : 43,701.28 = 17,520.91 : x
  2. Step 2: Convert to fraction form
    31,668.91/43,701.28 = 17,520.91/x
  3. Step 3: Cross multiply
    31,668.91x = 43,701.28 × 17,520.91
  4. Step 4: Simplify right side
    31,668.91x = 765,686,193.76
  5. Step 5: Solve for x
    x = 765,686,193.76/31,668.91
  6. Step 6: Final answer
    x = 24,177.85

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