Home / 28,446.26-42,673.44-15,115.78

Finding the Fourth Proportional to 28,446.26, 42,673.44 and 15,115.78

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Solution

The fourth proportional to 28,446.26, 42,673.44 and 15,115.78 is: 22,675.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,446.26 : 42,673.44 = 15,115.78 : x
  2. Step 2: Convert to fraction form
    28,446.26/42,673.44 = 15,115.78/x
  3. Step 3: Cross multiply
    28,446.26x = 42,673.44 × 15,115.78
  4. Step 4: Simplify right side
    28,446.26x = 645,042,330.88
  5. Step 5: Solve for x
    x = 645,042,330.88/28,446.26
  6. Step 6: Final answer
    x = 22,675.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.