Home / 28,738.56-43,107.78-7,962

Finding the Fourth Proportional to 28,738.56, 43,107.78 and 7,962

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Solution

The fourth proportional to 28,738.56, 43,107.78 and 7,962 is: 11,942.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,738.56 : 43,107.78 = 7,962 : x
  2. Step 2: Convert to fraction form
    28,738.56/43,107.78 = 7,962/x
  3. Step 3: Cross multiply
    28,738.56x = 43,107.78 × 7,962
  4. Step 4: Simplify right side
    28,738.56x = 343,224,144.36
  5. Step 5: Solve for x
    x = 343,224,144.36/28,738.56
  6. Step 6: Final answer
    x = 11,942.98

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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.