Home / 20,163.10-30,244.65-11,847.10

Finding the Fourth Proportional to 20,163.10, 30,244.65 and 11,847.10

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Solution

The fourth proportional to 20,163.10, 30,244.65 and 11,847.10 is: 17,770.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,163.10 : 30,244.65 = 11,847.10 : x
  2. Step 2: Convert to fraction form
    20,163.10/30,244.65 = 11,847.10/x
  3. Step 3: Cross multiply
    20,163.10x = 30,244.65 × 11,847.10
  4. Step 4: Simplify right side
    20,163.10x = 358,311,393.02
  5. Step 5: Solve for x
    x = 358,311,393.02/20,163.10
  6. Step 6: Final answer
    x = 17,770.65

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.