Home / 28,919.08-43,377.54-8,142.04

Finding the Fourth Proportional to 28,919.08, 43,377.54 and 8,142.04

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Solution

The fourth proportional to 28,919.08, 43,377.54 and 8,142.04 is: 12,212.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,919.08 : 43,377.54 = 8,142.04 : x
  2. Step 2: Convert to fraction form
    28,919.08/43,377.54 = 8,142.04/x
  3. Step 3: Cross multiply
    28,919.08x = 43,377.54 × 8,142.04
  4. Step 4: Simplify right side
    28,919.08x = 353,181,665.78
  5. Step 5: Solve for x
    x = 353,181,665.78/28,919.08
  6. Step 6: Final answer
    x = 12,212.76

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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.