Home / 13,831.41-20,742.68-4,469.43

Finding the Fourth Proportional to 13,831.41, 20,742.68 and 4,469.43

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Solution

The fourth proportional to 13,831.41, 20,742.68 and 4,469.43 is: 6,702.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,831.41 : 20,742.68 = 4,469.43 : x
  2. Step 2: Convert to fraction form
    13,831.41/20,742.68 = 4,469.43/x
  3. Step 3: Cross multiply
    13,831.41x = 20,742.68 × 4,469.43
  4. Step 4: Simplify right side
    13,831.41x = 92,707,928.55
  5. Step 5: Solve for x
    x = 92,707,928.55/13,831.41
  6. Step 6: Final answer
    x = 6,702.71

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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.