Home / 15,517.06-23,155.69-13,855.78

Finding the Fourth Proportional to 15,517.06, 23,155.69 and 13,855.78

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Solution

The fourth proportional to 15,517.06, 23,155.69 and 13,855.78 is: 20,676.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,517.06 : 23,155.69 = 13,855.78 : x
  2. Step 2: Convert to fraction form
    15,517.06/23,155.69 = 13,855.78/x
  3. Step 3: Cross multiply
    15,517.06x = 23,155.69 × 13,855.78
  4. Step 4: Simplify right side
    15,517.06x = 320,840,146.39
  5. Step 5: Solve for x
    x = 320,840,146.39/15,517.06
  6. Step 6: Final answer
    x = 20,676.61

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