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Finding the Fourth Proportional to 20,202.88, 30,309.09 and 6,351.88

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Solution

The fourth proportional to 20,202.88, 30,309.09 and 6,351.88 is: 9,529.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,202.88 : 30,309.09 = 6,351.88 : x
  2. Step 2: Convert to fraction form
    20,202.88/30,309.09 = 6,351.88/x
  3. Step 3: Cross multiply
    20,202.88x = 30,309.09 × 6,351.88
  4. Step 4: Simplify right side
    20,202.88x = 192,519,670.83
  5. Step 5: Solve for x
    x = 192,519,670.83/20,202.88
  6. Step 6: Final answer
    x = 9,529.32

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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.