Home / 30,391.50-41,942.36-16,965.36

Finding the Fourth Proportional to 30,391.50, 41,942.36 and 16,965.36

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Solution

The fourth proportional to 30,391.50, 41,942.36 and 16,965.36 is: 23,413.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,391.50 : 41,942.36 = 16,965.36 : x
  2. Step 2: Convert to fraction form
    30,391.50/41,942.36 = 16,965.36/x
  3. Step 3: Cross multiply
    30,391.50x = 41,942.36 × 16,965.36
  4. Step 4: Simplify right side
    30,391.50x = 711,567,236.65
  5. Step 5: Solve for x
    x = 711,567,236.65/30,391.50
  6. Step 6: Final answer
    x = 23,413.36

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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.