Home / 22,270.35-30,733.08-12,198.78

Finding the Fourth Proportional to 22,270.35, 30,733.08 and 12,198.78

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Solution

The fourth proportional to 22,270.35, 30,733.08 and 12,198.78 is: 16,834.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,270.35 : 30,733.08 = 12,198.78 : x
  2. Step 2: Convert to fraction form
    22,270.35/30,733.08 = 12,198.78/x
  3. Step 3: Cross multiply
    22,270.35x = 30,733.08 × 12,198.78
  4. Step 4: Simplify right side
    22,270.35x = 374,906,081.64
  5. Step 5: Solve for x
    x = 374,906,081.64/22,270.35
  6. Step 6: Final answer
    x = 16,834.31

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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.