Home / 21,229.38-31,848.66-6,439.43

Finding the Fourth Proportional to 21,229.38, 31,848.66 and 6,439.43

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Solution

The fourth proportional to 21,229.38, 31,848.66 and 6,439.43 is: 9,660.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,229.38 : 31,848.66 = 6,439.43 : x
  2. Step 2: Convert to fraction form
    21,229.38/31,848.66 = 6,439.43/x
  3. Step 3: Cross multiply
    21,229.38x = 31,848.66 × 6,439.43
  4. Step 4: Simplify right side
    21,229.38x = 205,087,057.42
  5. Step 5: Solve for x
    x = 205,087,057.42/21,229.38
  6. Step 6: Final answer
    x = 9,660.53

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