Home / 28,716.06-43,074.90-7,939.56

Finding the Fourth Proportional to 28,716.06, 43,074.90 and 7,939.56

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Solution

The fourth proportional to 28,716.06, 43,074.90 and 7,939.56 is: 11,909.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,716.06 : 43,074.90 = 7,939.56 : x
  2. Step 2: Convert to fraction form
    28,716.06/43,074.90 = 7,939.56/x
  3. Step 3: Cross multiply
    28,716.06x = 43,074.90 × 7,939.56
  4. Step 4: Simplify right side
    28,716.06x = 341,995,753.04
  5. Step 5: Solve for x
    x = 341,995,753.04/28,716.06
  6. Step 6: Final answer
    x = 11,909.56

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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.