Home / 20,923.50-31,382.94-6,132.57

Finding the Fourth Proportional to 20,923.50, 31,382.94 and 6,132.57

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Solution

The fourth proportional to 20,923.50, 31,382.94 and 6,132.57 is: 9,198.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,923.50 : 31,382.94 = 6,132.57 : x
  2. Step 2: Convert to fraction form
    20,923.50/31,382.94 = 6,132.57/x
  3. Step 3: Cross multiply
    20,923.50x = 31,382.94 × 6,132.57
  4. Step 4: Simplify right side
    20,923.50x = 192,458,076.36
  5. Step 5: Solve for x
    x = 192,458,076.36/20,923.50
  6. Step 6: Final answer
    x = 9,198.18

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1.5x scale

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.