Home / 28,819.99-43,226.34-7,761.71

Finding the Fourth Proportional to 28,819.99, 43,226.34 and 7,761.71

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Solution

The fourth proportional to 28,819.99, 43,226.34 and 7,761.71 is: 11,641.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,819.99 : 43,226.34 = 7,761.71 : x
  2. Step 2: Convert to fraction form
    28,819.99/43,226.34 = 7,761.71/x
  3. Step 3: Cross multiply
    28,819.99x = 43,226.34 × 7,761.71
  4. Step 4: Simplify right side
    28,819.99x = 335,510,315.44
  5. Step 5: Solve for x
    x = 335,510,315.44/28,819.99
  6. Step 6: Final answer
    x = 11,641.58

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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.