Home / 19,081.38-28,626.12-5,754.78

Finding the Fourth Proportional to 19,081.38, 28,626.12 and 5,754.78

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Solution

The fourth proportional to 19,081.38, 28,626.12 and 5,754.78 is: 8,633.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,081.38 : 28,626.12 = 5,754.78 : x
  2. Step 2: Convert to fraction form
    19,081.38/28,626.12 = 5,754.78/x
  3. Step 3: Cross multiply
    19,081.38x = 28,626.12 × 5,754.78
  4. Step 4: Simplify right side
    19,081.38x = 164,737,022.85
  5. Step 5: Solve for x
    x = 164,737,022.85/19,081.38
  6. Step 6: Final answer
    x = 8,633.39

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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.