Home / 22,192.80-30,626.31-12,121.54

Finding the Fourth Proportional to 22,192.80, 30,626.31 and 12,121.54

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Solution

The fourth proportional to 22,192.80, 30,626.31 and 12,121.54 is: 16,727.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,192.80 : 30,626.31 = 12,121.54 : x
  2. Step 2: Convert to fraction form
    22,192.80/30,626.31 = 12,121.54/x
  3. Step 3: Cross multiply
    22,192.80x = 30,626.31 × 12,121.54
  4. Step 4: Simplify right side
    22,192.80x = 371,238,041.72
  5. Step 5: Solve for x
    x = 371,238,041.72/22,192.80
  6. Step 6: Final answer
    x = 16,727.86

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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.