Home / 18,578.32-27,868.24-4,727.68

Finding the Fourth Proportional to 18,578.32, 27,868.24 and 4,727.68

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Solution

The fourth proportional to 18,578.32, 27,868.24 and 4,727.68 is: 7,091.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,578.32 : 27,868.24 = 4,727.68 : x
  2. Step 2: Convert to fraction form
    18,578.32/27,868.24 = 4,727.68/x
  3. Step 3: Cross multiply
    18,578.32x = 27,868.24 × 4,727.68
  4. Step 4: Simplify right side
    18,578.32x = 131,752,120.88
  5. Step 5: Solve for x
    x = 131,752,120.88/18,578.32
  6. Step 6: Final answer
    x = 7,091.71

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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.