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Finding the Fourth Proportional to 23,668.40, 35,531.40 and 17,778.80

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Solution

The fourth proportional to 23,668.40, 35,531.40 and 17,778.80 is: 26,689.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,668.40 : 35,531.40 = 17,778.80 : x
  2. Step 2: Convert to fraction form
    23,668.40/35,531.40 = 17,778.80/x
  3. Step 3: Cross multiply
    23,668.40x = 35,531.40 × 17,778.80
  4. Step 4: Simplify right side
    23,668.40x = 631,705,654.32
  5. Step 5: Solve for x
    x = 631,705,654.32/23,668.40
  6. Step 6: Final answer
    x = 26,689.83

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