Home / 23,990.46-33,105.15-13,380.68

Finding the Fourth Proportional to 23,990.46, 33,105.15 and 13,380.68

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Solution

The fourth proportional to 23,990.46, 33,105.15 and 13,380.68 is: 18,464.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,990.46 : 33,105.15 = 13,380.68 : x
  2. Step 2: Convert to fraction form
    23,990.46/33,105.15 = 13,380.68/x
  3. Step 3: Cross multiply
    23,990.46x = 33,105.15 × 13,380.68
  4. Step 4: Simplify right side
    23,990.46x = 442,969,252.98
  5. Step 5: Solve for x
    x = 442,969,252.98/23,990.46
  6. Step 6: Final answer
    x = 18,464.39

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.