Home / 13,678.27-20,517.41-3,290.02

Finding the Fourth Proportional to 13,678.27, 20,517.41 and 3,290.02

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Solution

The fourth proportional to 13,678.27, 20,517.41 and 3,290.02 is: 4,935.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,678.27 : 20,517.41 = 3,290.02 : x
  2. Step 2: Convert to fraction form
    13,678.27/20,517.41 = 3,290.02/x
  3. Step 3: Cross multiply
    13,678.27x = 20,517.41 × 3,290.02
  4. Step 4: Simplify right side
    13,678.27x = 67,502,672.80
  5. Step 5: Solve for x
    x = 67,502,672.80/13,678.27
  6. Step 6: Final answer
    x = 4,935.03

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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.