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Finding the Fourth Proportional to 31,520.71, 43,498.63 and 17,373.55

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Solution

The fourth proportional to 31,520.71, 43,498.63 and 17,373.55 is: 23,975.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,520.71 : 43,498.63 = 17,373.55 : x
  2. Step 2: Convert to fraction form
    31,520.71/43,498.63 = 17,373.55/x
  3. Step 3: Cross multiply
    31,520.71x = 43,498.63 × 17,373.55
  4. Step 4: Simplify right side
    31,520.71x = 755,725,703.37
  5. Step 5: Solve for x
    x = 755,725,703.37/31,520.71
  6. Step 6: Final answer
    x = 23,975.53

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