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Finding the Fourth Proportional to 34,034.20, 50,954.10 and 20,912.20

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Solution

The fourth proportional to 34,034.20, 50,954.10 and 20,912.20 is: 31,308.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,034.20 : 50,954.10 = 20,912.20 : x
  2. Step 2: Convert to fraction form
    34,034.20/50,954.10 = 20,912.20/x
  3. Step 3: Cross multiply
    34,034.20x = 50,954.10 × 20,912.20
  4. Step 4: Simplify right side
    34,034.20x = 1,065,562,330.02
  5. Step 5: Solve for x
    x = 1,065,562,330.02/34,034.20
  6. Step 6: Final answer
    x = 31,308.58

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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.