Home / 22,183.92-33,083.46-18,918

Finding the Fourth Proportional to 22,183.92, 33,083.46 and 18,918

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Solution

The fourth proportional to 22,183.92, 33,083.46 and 18,918 is: 28,212.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,183.92 : 33,083.46 = 18,918 : x
  2. Step 2: Convert to fraction form
    22,183.92/33,083.46 = 18,918/x
  3. Step 3: Cross multiply
    22,183.92x = 33,083.46 × 18,918
  4. Step 4: Simplify right side
    22,183.92x = 625,872,896.28
  5. Step 5: Solve for x
    x = 625,872,896.28/22,183.92
  6. Step 6: Final answer
    x = 28,212.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.