Home / 21,832.92-30,129.39-11,896.92

Finding the Fourth Proportional to 21,832.92, 30,129.39 and 11,896.92

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Solution

The fourth proportional to 21,832.92, 30,129.39 and 11,896.92 is: 16,417.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,832.92 : 30,129.39 = 11,896.92 : x
  2. Step 2: Convert to fraction form
    21,832.92/30,129.39 = 11,896.92/x
  3. Step 3: Cross multiply
    21,832.92x = 30,129.39 × 11,896.92
  4. Step 4: Simplify right side
    21,832.92x = 358,446,942.48
  5. Step 5: Solve for x
    x = 358,446,942.48/21,832.92
  6. Step 6: Final answer
    x = 16,417.73

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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.