Home / 31,116.07-42,942.75-17,691.55

Finding the Fourth Proportional to 31,116.07, 42,942.75 and 17,691.55

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Solution

The fourth proportional to 31,116.07, 42,942.75 and 17,691.55 is: 24,415.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,116.07 : 42,942.75 = 17,691.55 : x
  2. Step 2: Convert to fraction form
    31,116.07/42,942.75 = 17,691.55/x
  3. Step 3: Cross multiply
    31,116.07x = 42,942.75 × 17,691.55
  4. Step 4: Simplify right side
    31,116.07x = 759,723,720.30
  5. Step 5: Solve for x
    x = 759,723,720.30/31,116.07
  6. Step 6: Final answer
    x = 24,415.80

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