Home / 36,990.38-51,048.33-20,863.10

Finding the Fourth Proportional to 36,990.38, 51,048.33 and 20,863.10

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Solution

The fourth proportional to 36,990.38, 51,048.33 and 20,863.10 is: 28,791.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,990.38 : 51,048.33 = 20,863.10 : x
  2. Step 2: Convert to fraction form
    36,990.38/51,048.33 = 20,863.10/x
  3. Step 3: Cross multiply
    36,990.38x = 51,048.33 × 20,863.10
  4. Step 4: Simplify right side
    36,990.38x = 1,065,026,413.62
  5. Step 5: Solve for x
    x = 1,065,026,413.62/36,990.38
  6. Step 6: Final answer
    x = 28,791.98

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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.