Home / 28,119.71-38,806.38-16,183.08

Finding the Fourth Proportional to 28,119.71, 38,806.38 and 16,183.08

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Solution

The fourth proportional to 28,119.71, 38,806.38 and 16,183.08 is: 22,333.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,119.71 : 38,806.38 = 16,183.08 : x
  2. Step 2: Convert to fraction form
    28,119.71/38,806.38 = 16,183.08/x
  3. Step 3: Cross multiply
    28,119.71x = 38,806.38 × 16,183.08
  4. Step 4: Simplify right side
    28,119.71x = 628,006,752.05
  5. Step 5: Solve for x
    x = 628,006,752.05/28,119.71
  6. Step 6: Final answer
    x = 22,333.33

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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.