Home / 30,391.74-41,942.71-16,965.61

Finding the Fourth Proportional to 30,391.74, 41,942.71 and 16,965.61

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Solution

The fourth proportional to 30,391.74, 41,942.71 and 16,965.61 is: 23,413.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,391.74 : 41,942.71 = 16,965.61 : x
  2. Step 2: Convert to fraction form
    30,391.74/41,942.71 = 16,965.61/x
  3. Step 3: Cross multiply
    30,391.74x = 41,942.71 × 16,965.61
  4. Step 4: Simplify right side
    30,391.74x = 711,583,617.79
  5. Step 5: Solve for x
    x = 711,583,617.79/30,391.74
  6. Step 6: Final answer
    x = 23,413.72

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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.