Home / 41,989.39-62,969.50-12,399.28

Finding the Fourth Proportional to 41,989.39, 62,969.50 and 12,399.28

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Solution

The fourth proportional to 41,989.39, 62,969.50 and 12,399.28 is: 18,594.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,989.39 : 62,969.50 = 12,399.28 : x
  2. Step 2: Convert to fraction form
    41,989.39/62,969.50 = 12,399.28/x
  3. Step 3: Cross multiply
    41,989.39x = 62,969.50 × 12,399.28
  4. Step 4: Simplify right side
    41,989.39x = 780,776,273.54
  5. Step 5: Solve for x
    x = 780,776,273.54/41,989.39
  6. Step 6: Final answer
    x = 18,594.61

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.