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Finding the Fourth Proportional to 25,221.88, 37,780.98 and 20,264.68

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Solution

The fourth proportional to 25,221.88, 37,780.98 and 20,264.68 is: 30,355.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,221.88 : 37,780.98 = 20,264.68 : x
  2. Step 2: Convert to fraction form
    25,221.88/37,780.98 = 20,264.68/x
  3. Step 3: Cross multiply
    25,221.88x = 37,780.98 × 20,264.68
  4. Step 4: Simplify right side
    25,221.88x = 765,619,469.79
  5. Step 5: Solve for x
    x = 765,619,469.79/25,221.88
  6. Step 6: Final answer
    x = 30,355.37

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