Home / 20,664.60-30,995.28-6,626.04

Finding the Fourth Proportional to 20,664.60, 30,995.28 and 6,626.04

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Solution

The fourth proportional to 20,664.60, 30,995.28 and 6,626.04 is: 9,938.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,664.60 : 30,995.28 = 6,626.04 : x
  2. Step 2: Convert to fraction form
    20,664.60/30,995.28 = 6,626.04/x
  3. Step 3: Cross multiply
    20,664.60x = 30,995.28 × 6,626.04
  4. Step 4: Simplify right side
    20,664.60x = 205,375,965.09
  5. Step 5: Solve for x
    x = 205,375,965.09/20,664.60
  6. Step 6: Final answer
    x = 9,938.54

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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.