Home / 43,819.28-65,715-14,230.28

Finding the Fourth Proportional to 43,819.28, 65,715 and 14,230.28

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Solution

The fourth proportional to 43,819.28, 65,715 and 14,230.28 is: 21,340.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,819.28 : 65,715 = 14,230.28 : x
  2. Step 2: Convert to fraction form
    43,819.28/65,715 = 14,230.28/x
  3. Step 3: Cross multiply
    43,819.28x = 65,715 × 14,230.28
  4. Step 4: Simplify right side
    43,819.28x = 935,142,850.20
  5. Step 5: Solve for x
    x = 935,142,850.20/43,819.28
  6. Step 6: Final answer
    x = 21,340.90

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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.