Home / 28,120.05-38,806.83-16,183.42

Finding the Fourth Proportional to 28,120.05, 38,806.83 and 16,183.42

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Solution

The fourth proportional to 28,120.05, 38,806.83 and 16,183.42 is: 22,333.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,120.05 : 38,806.83 = 16,183.42 : x
  2. Step 2: Convert to fraction form
    28,120.05/38,806.83 = 16,183.42/x
  3. Step 3: Cross multiply
    28,120.05x = 38,806.83 × 16,183.42
  4. Step 4: Simplify right side
    28,120.05x = 628,027,228.76
  5. Step 5: Solve for x
    x = 628,027,228.76/28,120.05
  6. Step 6: Final answer
    x = 22,333.79

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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.