Home / 43,470.28-65,204.84-13,887.72

Finding the Fourth Proportional to 43,470.28, 65,204.84 and 13,887.72

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Solution

The fourth proportional to 43,470.28, 65,204.84 and 13,887.72 is: 20,831.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,470.28 : 65,204.84 = 13,887.72 : x
  2. Step 2: Convert to fraction form
    43,470.28/65,204.84 = 13,887.72/x
  3. Step 3: Cross multiply
    43,470.28x = 65,204.84 × 13,887.72
  4. Step 4: Simplify right side
    43,470.28x = 905,546,560.56
  5. Step 5: Solve for x
    x = 905,546,560.56/43,470.28
  6. Step 6: Final answer
    x = 20,831.39

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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.