Home / 20,168.73-27,836.51-11,669.85

Finding the Fourth Proportional to 20,168.73, 27,836.51 and 11,669.85

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Solution

The fourth proportional to 20,168.73, 27,836.51 and 11,669.85 is: 16,106.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,168.73 : 27,836.51 = 11,669.85 : x
  2. Step 2: Convert to fraction form
    20,168.73/27,836.51 = 11,669.85/x
  3. Step 3: Cross multiply
    20,168.73x = 27,836.51 × 11,669.85
  4. Step 4: Simplify right side
    20,168.73x = 324,847,837.87
  5. Step 5: Solve for x
    x = 324,847,837.87/20,168.73
  6. Step 6: Final answer
    x = 16,106.51

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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.