Home / 22,352.10-30,845.15-12,279.90

Finding the Fourth Proportional to 22,352.10, 30,845.15 and 12,279.90

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Solution

The fourth proportional to 22,352.10, 30,845.15 and 12,279.90 is: 16,945.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,352.10 : 30,845.15 = 12,279.90 : x
  2. Step 2: Convert to fraction form
    22,352.10/30,845.15 = 12,279.90/x
  3. Step 3: Cross multiply
    22,352.10x = 30,845.15 × 12,279.90
  4. Step 4: Simplify right side
    22,352.10x = 378,775,526.88
  5. Step 5: Solve for x
    x = 378,775,526.88/22,352.10
  6. Step 6: Final answer
    x = 16,945.86

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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.