Home / 20,664.54-30,993.66-6,623.09

Finding the Fourth Proportional to 20,664.54, 30,993.66 and 6,623.09

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Solution

The fourth proportional to 20,664.54, 30,993.66 and 6,623.09 is: 9,933.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,664.54 : 30,993.66 = 6,623.09 : x
  2. Step 2: Convert to fraction form
    20,664.54/30,993.66 = 6,623.09/x
  3. Step 3: Cross multiply
    20,664.54x = 30,993.66 × 6,623.09
  4. Step 4: Simplify right side
    20,664.54x = 205,273,644.64
  5. Step 5: Solve for x
    x = 205,273,644.64/20,664.54
  6. Step 6: Final answer
    x = 9,933.62

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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.