Home / 13,382.82-20,072.41-3,521.27

Finding the Fourth Proportional to 13,382.82, 20,072.41 and 3,521.27

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Solution

The fourth proportional to 13,382.82, 20,072.41 and 3,521.27 is: 5,281.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,382.82 : 20,072.41 = 3,521.27 : x
  2. Step 2: Convert to fraction form
    13,382.82/20,072.41 = 3,521.27/x
  3. Step 3: Cross multiply
    13,382.82x = 20,072.41 × 3,521.27
  4. Step 4: Simplify right side
    13,382.82x = 70,680,416.54
  5. Step 5: Solve for x
    x = 70,680,416.54/13,382.82
  6. Step 6: Final answer
    x = 5,281.43

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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.