Home / 31,375.81-43,298.67-17,229.55

Finding the Fourth Proportional to 31,375.81, 43,298.67 and 17,229.55

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Solution

The fourth proportional to 31,375.81, 43,298.67 and 17,229.55 is: 23,776.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,375.81 : 43,298.67 = 17,229.55 : x
  2. Step 2: Convert to fraction form
    31,375.81/43,298.67 = 17,229.55/x
  3. Step 3: Cross multiply
    31,375.81x = 43,298.67 × 17,229.55
  4. Step 4: Simplify right side
    31,375.81x = 746,016,599.70
  5. Step 5: Solve for x
    x = 746,016,599.70/31,375.81
  6. Step 6: Final answer
    x = 23,776.81

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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.