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Finding the Fourth Proportional to 20,713.92, 31,066.53 and 6,675.21

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Solution

The fourth proportional to 20,713.92, 31,066.53 and 6,675.21 is: 10,011.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,713.92 : 31,066.53 = 6,675.21 : x
  2. Step 2: Convert to fraction form
    20,713.92/31,066.53 = 6,675.21/x
  3. Step 3: Cross multiply
    20,713.92x = 31,066.53 × 6,675.21
  4. Step 4: Simplify right side
    20,713.92x = 207,375,611.72
  5. Step 5: Solve for x
    x = 207,375,611.72/20,713.92
  6. Step 6: Final answer
    x = 10,011.41

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.