Home / 31,269.12-43,147.38-17,839.60

Finding the Fourth Proportional to 31,269.12, 43,147.38 and 17,839.60

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Solution

The fourth proportional to 31,269.12, 43,147.38 and 17,839.60 is: 24,616.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,269.12 : 43,147.38 = 17,839.60 : x
  2. Step 2: Convert to fraction form
    31,269.12/43,147.38 = 17,839.60/x
  3. Step 3: Cross multiply
    31,269.12x = 43,147.38 × 17,839.60
  4. Step 4: Simplify right side
    31,269.12x = 769,732,000.25
  5. Step 5: Solve for x
    x = 769,732,000.25/31,269.12
  6. Step 6: Final answer
    x = 24,616.36

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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.