Home / 43,820.28-65,716.50-14,231.28

Finding the Fourth Proportional to 43,820.28, 65,716.50 and 14,231.28

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Solution

The fourth proportional to 43,820.28, 65,716.50 and 14,231.28 is: 21,342.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,820.28 : 65,716.50 = 14,231.28 : x
  2. Step 2: Convert to fraction form
    43,820.28/65,716.50 = 14,231.28/x
  3. Step 3: Cross multiply
    43,820.28x = 65,716.50 × 14,231.28
  4. Step 4: Simplify right side
    43,820.28x = 935,229,912.12
  5. Step 5: Solve for x
    x = 935,229,912.12/43,820.28
  6. Step 6: Final answer
    x = 21,342.40

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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.