Home / 22,229.26-30,676.19-12,157.72

Finding the Fourth Proportional to 22,229.26, 30,676.19 and 12,157.72

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Solution

The fourth proportional to 22,229.26, 30,676.19 and 12,157.72 is: 16,777.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,229.26 : 30,676.19 = 12,157.72 : x
  2. Step 2: Convert to fraction form
    22,229.26/30,676.19 = 12,157.72/x
  3. Step 3: Cross multiply
    22,229.26x = 30,676.19 × 12,157.72
  4. Step 4: Simplify right side
    22,229.26x = 372,952,391.21
  5. Step 5: Solve for x
    x = 372,952,391.21/22,229.26
  6. Step 6: Final answer
    x = 16,777.55

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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.