Home / 19,115.41-28,640.76-11,704.39

Finding the Fourth Proportional to 19,115.41, 28,640.76 and 11,704.39

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Solution

The fourth proportional to 19,115.41, 28,640.76 and 11,704.39 is: 17,536.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,115.41 : 28,640.76 = 11,704.39 : x
  2. Step 2: Convert to fraction form
    19,115.41/28,640.76 = 11,704.39/x
  3. Step 3: Cross multiply
    19,115.41x = 28,640.76 × 11,704.39
  4. Step 4: Simplify right side
    19,115.41x = 335,222,616.85
  5. Step 5: Solve for x
    x = 335,222,616.85/19,115.41
  6. Step 6: Final answer
    x = 17,536.78

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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.