Home / 20,917.43-31,297.72-12,452.97

Finding the Fourth Proportional to 20,917.43, 31,297.72 and 12,452.97

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Solution

The fourth proportional to 20,917.43, 31,297.72 and 12,452.97 is: 18,632.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,917.43 : 31,297.72 = 12,452.97 : x
  2. Step 2: Convert to fraction form
    20,917.43/31,297.72 = 12,452.97/x
  3. Step 3: Cross multiply
    20,917.43x = 31,297.72 × 12,452.97
  4. Step 4: Simplify right side
    20,917.43x = 389,749,576.22
  5. Step 5: Solve for x
    x = 389,749,576.22/20,917.43
  6. Step 6: Final answer
    x = 18,632.77

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