Home / 20,426.06-30,641.97-7,274.54

Finding the Fourth Proportional to 20,426.06, 30,641.97 and 7,274.54

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Solution

The fourth proportional to 20,426.06, 30,641.97 and 7,274.54 is: 10,912.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,426.06 : 30,641.97 = 7,274.54 : x
  2. Step 2: Convert to fraction form
    20,426.06/30,641.97 = 7,274.54/x
  3. Step 3: Cross multiply
    20,426.06x = 30,641.97 × 7,274.54
  4. Step 4: Simplify right side
    20,426.06x = 222,906,236.44
  5. Step 5: Solve for x
    x = 222,906,236.44/20,426.06
  6. Step 6: Final answer
    x = 10,912.84

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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.