Home / 22,255.16-30,711.15-12,183.62

Finding the Fourth Proportional to 22,255.16, 30,711.15 and 12,183.62

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Solution

The fourth proportional to 22,255.16, 30,711.15 and 12,183.62 is: 16,812.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,255.16 : 30,711.15 = 12,183.62 : x
  2. Step 2: Convert to fraction form
    22,255.16/30,711.15 = 12,183.62/x
  3. Step 3: Cross multiply
    22,255.16x = 30,711.15 × 12,183.62
  4. Step 4: Simplify right side
    22,255.16x = 374,172,827.81
  5. Step 5: Solve for x
    x = 374,172,827.81/22,255.16
  6. Step 6: Final answer
    x = 16,812.86

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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.