Home / 22,249.35-30,706.83-13,296.78

Finding the Fourth Proportional to 22,249.35, 30,706.83 and 13,296.78

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Solution

The fourth proportional to 22,249.35, 30,706.83 and 13,296.78 is: 18,351.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,249.35 : 30,706.83 = 13,296.78 : x
  2. Step 2: Convert to fraction form
    22,249.35/30,706.83 = 13,296.78/x
  3. Step 3: Cross multiply
    22,249.35x = 30,706.83 × 13,296.78
  4. Step 4: Simplify right side
    22,249.35x = 408,301,963.01
  5. Step 5: Solve for x
    x = 408,301,963.01/22,249.35
  6. Step 6: Final answer
    x = 18,351.19

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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.