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Finding the Fourth Proportional to 20,033.71, 30,060.02 and 8,939.41

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Solution

The fourth proportional to 20,033.71, 30,060.02 and 8,939.41 is: 13,413.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,033.71 : 30,060.02 = 8,939.41 : x
  2. Step 2: Convert to fraction form
    20,033.71/30,060.02 = 8,939.41/x
  3. Step 3: Cross multiply
    20,033.71x = 30,060.02 × 8,939.41
  4. Step 4: Simplify right side
    20,033.71x = 268,718,798.69
  5. Step 5: Solve for x
    x = 268,718,798.69/20,033.71
  6. Step 6: Final answer
    x = 13,413.33

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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.