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Finding the Fourth Proportional to 18,615.52, 25,715.58 and 16,933.96

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Solution

The fourth proportional to 18,615.52, 25,715.58 and 16,933.96 is: 23,392.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,615.52 : 25,715.58 = 16,933.96 : x
  2. Step 2: Convert to fraction form
    18,615.52/25,715.58 = 16,933.96/x
  3. Step 3: Cross multiply
    18,615.52x = 25,715.58 × 16,933.96
  4. Step 4: Simplify right side
    18,615.52x = 435,466,571.74
  5. Step 5: Solve for x
    x = 435,466,571.74/18,615.52
  6. Step 6: Final answer
    x = 23,392.66

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