Home / 20,144.13-27,798.85-11,191.60

Finding the Fourth Proportional to 20,144.13, 27,798.85 and 11,191.60

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Solution

The fourth proportional to 20,144.13, 27,798.85 and 11,191.60 is: 15,444.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,144.13 : 27,798.85 = 11,191.60 : x
  2. Step 2: Convert to fraction form
    20,144.13/27,798.85 = 11,191.60/x
  3. Step 3: Cross multiply
    20,144.13x = 27,798.85 × 11,191.60
  4. Step 4: Simplify right side
    20,144.13x = 311,113,595.45
  5. Step 5: Solve for x
    x = 311,113,595.45/20,144.13
  6. Step 6: Final answer
    x = 15,444.38

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Double scale
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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.