Home / 18,891.75-28,338.23-5,744.24

Finding the Fourth Proportional to 18,891.75, 28,338.23 and 5,744.24

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Solution

The fourth proportional to 18,891.75, 28,338.23 and 5,744.24 is: 8,616.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,891.75 : 28,338.23 = 5,744.24 : x
  2. Step 2: Convert to fraction form
    18,891.75/28,338.23 = 5,744.24/x
  3. Step 3: Cross multiply
    18,891.75x = 28,338.23 × 5,744.24
  4. Step 4: Simplify right side
    18,891.75x = 162,781,423.88
  5. Step 5: Solve for x
    x = 162,781,423.88/18,891.75
  6. Step 6: Final answer
    x = 8,616.53

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1.5x scale

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.