Home / 18,431.80-27,642.30-8,568.70

Finding the Fourth Proportional to 18,431.80, 27,642.30 and 8,568.70

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Solution

The fourth proportional to 18,431.80, 27,642.30 and 8,568.70 is: 12,850.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,431.80 : 27,642.30 = 8,568.70 : x
  2. Step 2: Convert to fraction form
    18,431.80/27,642.30 = 8,568.70/x
  3. Step 3: Cross multiply
    18,431.80x = 27,642.30 × 8,568.70
  4. Step 4: Simplify right side
    18,431.80x = 236,858,576.01
  5. Step 5: Solve for x
    x = 236,858,576.01/18,431.80
  6. Step 6: Final answer
    x = 12,850.54

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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.