Home / 20,869.52-31,309.41-6,078.56

Finding the Fourth Proportional to 20,869.52, 31,309.41 and 6,078.56

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Solution

The fourth proportional to 20,869.52, 31,309.41 and 6,078.56 is: 9,119.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,869.52 : 31,309.41 = 6,078.56 : x
  2. Step 2: Convert to fraction form
    20,869.52/31,309.41 = 6,078.56/x
  3. Step 3: Cross multiply
    20,869.52x = 31,309.41 × 6,078.56
  4. Step 4: Simplify right side
    20,869.52x = 190,316,127.25
  5. Step 5: Solve for x
    x = 190,316,127.25/20,869.52
  6. Step 6: Final answer
    x = 9,119.33

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