Home / 13,831.53-20,747.37-3,443.28

Finding the Fourth Proportional to 13,831.53, 20,747.37 and 3,443.28

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Solution

The fourth proportional to 13,831.53, 20,747.37 and 3,443.28 is: 5,164.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,831.53 : 20,747.37 = 3,443.28 : x
  2. Step 2: Convert to fraction form
    13,831.53/20,747.37 = 3,443.28/x
  3. Step 3: Cross multiply
    13,831.53x = 20,747.37 × 3,443.28
  4. Step 4: Simplify right side
    13,831.53x = 71,439,004.17
  5. Step 5: Solve for x
    x = 71,439,004.17/13,831.53
  6. Step 6: Final answer
    x = 5,164.94

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.