Home / 22,257.26-30,715.09-12,185.78

Finding the Fourth Proportional to 22,257.26, 30,715.09 and 12,185.78

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Solution

The fourth proportional to 22,257.26, 30,715.09 and 12,185.78 is: 16,816.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,257.26 : 30,715.09 = 12,185.78 : x
  2. Step 2: Convert to fraction form
    22,257.26/30,715.09 = 12,185.78/x
  3. Step 3: Cross multiply
    22,257.26x = 30,715.09 × 12,185.78
  4. Step 4: Simplify right side
    22,257.26x = 374,287,329.42
  5. Step 5: Solve for x
    x = 374,287,329.42/22,257.26
  6. Step 6: Final answer
    x = 16,816.42

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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.