Home / 28,161.46-38,818.08-22,183.66

Finding the Fourth Proportional to 28,161.46, 38,818.08 and 22,183.66

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Solution

The fourth proportional to 28,161.46, 38,818.08 and 22,183.66 is: 30,578.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,161.46 : 38,818.08 = 22,183.66 : x
  2. Step 2: Convert to fraction form
    28,161.46/38,818.08 = 22,183.66/x
  3. Step 3: Cross multiply
    28,161.46x = 38,818.08 × 22,183.66
  4. Step 4: Simplify right side
    28,161.46x = 861,127,088.57
  5. Step 5: Solve for x
    x = 861,127,088.57/28,161.46
  6. Step 6: Final answer
    x = 30,578.21

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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.