Home / 27,716.32-38,235.20-20,150.92

Finding the Fourth Proportional to 27,716.32, 38,235.20 and 20,150.92

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Solution

The fourth proportional to 27,716.32, 38,235.20 and 20,150.92 is: 27,798.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,716.32 : 38,235.20 = 20,150.92 : x
  2. Step 2: Convert to fraction form
    27,716.32/38,235.20 = 20,150.92/x
  3. Step 3: Cross multiply
    27,716.32x = 38,235.20 × 20,150.92
  4. Step 4: Simplify right side
    27,716.32x = 770,474,456.38
  5. Step 5: Solve for x
    x = 770,474,456.38/27,716.32
  6. Step 6: Final answer
    x = 27,798.58

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Half scale
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Double scale
Find fourth proportional to 27,717.32, 38,236.58 and 20,151.92
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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.