Home / 18,431.38-25,427.42-12,046.88

Finding the Fourth Proportional to 18,431.38, 25,427.42 and 12,046.88

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Solution

The fourth proportional to 18,431.38, 25,427.42 and 12,046.88 is: 16,619.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,431.38 : 25,427.42 = 12,046.88 : x
  2. Step 2: Convert to fraction form
    18,431.38/25,427.42 = 12,046.88/x
  3. Step 3: Cross multiply
    18,431.38x = 25,427.42 × 12,046.88
  4. Step 4: Simplify right side
    18,431.38x = 306,321,077.45
  5. Step 5: Solve for x
    x = 306,321,077.45/18,431.38
  6. Step 6: Final answer
    x = 16,619.54

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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.