Home / 22,193.38-30,626.92-12,121.90

Finding the Fourth Proportional to 22,193.38, 30,626.92 and 12,121.90

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Solution

The fourth proportional to 22,193.38, 30,626.92 and 12,121.90 is: 16,728.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,193.38 : 30,626.92 = 12,121.90 : x
  2. Step 2: Convert to fraction form
    22,193.38/30,626.92 = 12,121.90/x
  3. Step 3: Cross multiply
    22,193.38x = 30,626.92 × 12,121.90
  4. Step 4: Simplify right side
    22,193.38x = 371,256,461.55
  5. Step 5: Solve for x
    x = 371,256,461.55/22,193.38
  6. Step 6: Final answer
    x = 16,728.25

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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.