Home / 13,831.82-20,747.82-3,443.58

Finding the Fourth Proportional to 13,831.82, 20,747.82 and 3,443.58

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Solution

The fourth proportional to 13,831.82, 20,747.82 and 3,443.58 is: 5,165.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,831.82 : 20,747.82 = 3,443.58 : x
  2. Step 2: Convert to fraction form
    13,831.82/20,747.82 = 3,443.58/x
  3. Step 3: Cross multiply
    13,831.82x = 20,747.82 × 3,443.58
  4. Step 4: Simplify right side
    13,831.82x = 71,446,778.00
  5. Step 5: Solve for x
    x = 71,446,778.00/13,831.82
  6. Step 6: Final answer
    x = 5,165.39

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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.