Home / 43,839.68-65,769.24-12,672.56

Finding the Fourth Proportional to 43,839.68, 65,769.24 and 12,672.56

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Solution

The fourth proportional to 43,839.68, 65,769.24 and 12,672.56 is: 19,011.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,839.68 : 65,769.24 = 12,672.56 : x
  2. Step 2: Convert to fraction form
    43,839.68/65,769.24 = 12,672.56/x
  3. Step 3: Cross multiply
    43,839.68x = 65,769.24 × 12,672.56
  4. Step 4: Simplify right side
    43,839.68x = 833,464,640.05
  5. Step 5: Solve for x
    x = 833,464,640.05/43,839.68
  6. Step 6: Final answer
    x = 19,011.65

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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.