Home / 18,579.87-27,873.90-5,432.36

Finding the Fourth Proportional to 18,579.87, 27,873.90 and 5,432.36

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Solution

The fourth proportional to 18,579.87, 27,873.90 and 5,432.36 is: 8,149.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,579.87 : 27,873.90 = 5,432.36 : x
  2. Step 2: Convert to fraction form
    18,579.87/27,873.90 = 5,432.36/x
  3. Step 3: Cross multiply
    18,579.87x = 27,873.90 × 5,432.36
  4. Step 4: Simplify right side
    18,579.87x = 151,420,920.03
  5. Step 5: Solve for x
    x = 151,420,920.03/18,579.87
  6. Step 6: Final answer
    x = 8,149.73

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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.