Home / 31,778.94-43,861.32-18,352.38

Finding the Fourth Proportional to 31,778.94, 43,861.32 and 18,352.38

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Solution

The fourth proportional to 31,778.94, 43,861.32 and 18,352.38 is: 25,329.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,778.94 : 43,861.32 = 18,352.38 : x
  2. Step 2: Convert to fraction form
    31,778.94/43,861.32 = 18,352.38/x
  3. Step 3: Cross multiply
    31,778.94x = 43,861.32 × 18,352.38
  4. Step 4: Simplify right side
    31,778.94x = 804,959,611.94
  5. Step 5: Solve for x
    x = 804,959,611.94/31,778.94
  6. Step 6: Final answer
    x = 25,329.97

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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.