Home / 20,629.06-30,943.57-7,311.81

Finding the Fourth Proportional to 20,629.06, 30,943.57 and 7,311.81

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Solution

The fourth proportional to 20,629.06, 30,943.57 and 7,311.81 is: 10,967.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,629.06 : 30,943.57 = 7,311.81 : x
  2. Step 2: Convert to fraction form
    20,629.06/30,943.57 = 7,311.81/x
  3. Step 3: Cross multiply
    20,629.06x = 30,943.57 × 7,311.81
  4. Step 4: Simplify right side
    20,629.06x = 226,253,504.56
  5. Step 5: Solve for x
    x = 226,253,504.56/20,629.06
  6. Step 6: Final answer
    x = 10,967.71

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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.