Home / 20,546.19-28,353.74-11,114.73

Finding the Fourth Proportional to 20,546.19, 28,353.74 and 11,114.73

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Solution

The fourth proportional to 20,546.19, 28,353.74 and 11,114.73 is: 15,338.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,546.19 : 28,353.74 = 11,114.73 : x
  2. Step 2: Convert to fraction form
    20,546.19/28,353.74 = 11,114.73/x
  3. Step 3: Cross multiply
    20,546.19x = 28,353.74 × 11,114.73
  4. Step 4: Simplify right side
    20,546.19x = 315,144,109.02
  5. Step 5: Solve for x
    x = 315,144,109.02/20,546.19
  6. Step 6: Final answer
    x = 15,338.32

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Half scale
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Double scale
Find fourth proportional to 20,547.19, 28,355.11 and 11,115.73
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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.