Home / 31,431.27-43,376.55-17,284.62

Finding the Fourth Proportional to 31,431.27, 43,376.55 and 17,284.62

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Solution

The fourth proportional to 31,431.27, 43,376.55 and 17,284.62 is: 23,853.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,431.27 : 43,376.55 = 17,284.62 : x
  2. Step 2: Convert to fraction form
    31,431.27/43,376.55 = 17,284.62/x
  3. Step 3: Cross multiply
    31,431.27x = 43,376.55 × 17,284.62
  4. Step 4: Simplify right side
    31,431.27x = 749,747,183.66
  5. Step 5: Solve for x
    x = 749,747,183.66/31,431.27
  6. Step 6: Final answer
    x = 23,853.54

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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.