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Finding the Fourth Proportional to 31,651.88, 43,683.72 and 18,223.70

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Solution

The fourth proportional to 31,651.88, 43,683.72 and 18,223.70 is: 25,151.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,651.88 : 43,683.72 = 18,223.70 : x
  2. Step 2: Convert to fraction form
    31,651.88/43,683.72 = 18,223.70/x
  3. Step 3: Cross multiply
    31,651.88x = 43,683.72 × 18,223.70
  4. Step 4: Simplify right side
    31,651.88x = 796,078,789.75
  5. Step 5: Solve for x
    x = 796,078,789.75/31,651.88
  6. Step 6: Final answer
    x = 25,151.08

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