Home / 31,282.44-43,169.78-17,135.79

Finding the Fourth Proportional to 31,282.44, 43,169.78 and 17,135.79

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Solution

The fourth proportional to 31,282.44, 43,169.78 and 17,135.79 is: 23,647.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,282.44 : 43,169.78 = 17,135.79 : x
  2. Step 2: Convert to fraction form
    31,282.44/43,169.78 = 17,135.79/x
  3. Step 3: Cross multiply
    31,282.44x = 43,169.78 × 17,135.79
  4. Step 4: Simplify right side
    31,282.44x = 739,748,198.75
  5. Step 5: Solve for x
    x = 739,748,198.75/31,282.44
  6. Step 6: Final answer
    x = 23,647.39

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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.