Home / 43,942.21-65,912.72-10,662.55

Finding the Fourth Proportional to 43,942.21, 65,912.72 and 10,662.55

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Solution

The fourth proportional to 43,942.21, 65,912.72 and 10,662.55 is: 15,993.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,942.21 : 65,912.72 = 10,662.55 : x
  2. Step 2: Convert to fraction form
    43,942.21/65,912.72 = 10,662.55/x
  3. Step 3: Cross multiply
    43,942.21x = 65,912.72 × 10,662.55
  4. Step 4: Simplify right side
    43,942.21x = 702,797,672.64
  5. Step 5: Solve for x
    x = 702,797,672.64/43,942.21
  6. Step 6: Final answer
    x = 15,993.68

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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.