Home / 20,099.19-27,737.52-11,147.52

Finding the Fourth Proportional to 20,099.19, 27,737.52 and 11,147.52

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Solution

The fourth proportional to 20,099.19, 27,737.52 and 11,147.52 is: 15,383.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,099.19 : 27,737.52 = 11,147.52 : x
  2. Step 2: Convert to fraction form
    20,099.19/27,737.52 = 11,147.52/x
  3. Step 3: Cross multiply
    20,099.19x = 27,737.52 × 11,147.52
  4. Step 4: Simplify right side
    20,099.19x = 309,204,558.95
  5. Step 5: Solve for x
    x = 309,204,558.95/20,099.19
  6. Step 6: Final answer
    x = 15,383.93

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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.