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Finding the Fourth Proportional to 28,757.53, 43,138.32 and 7,697.53

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Solution

The fourth proportional to 28,757.53, 43,138.32 and 7,697.53 is: 11,546.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,757.53 : 43,138.32 = 7,697.53 : x
  2. Step 2: Convert to fraction form
    28,757.53/43,138.32 = 7,697.53/x
  3. Step 3: Cross multiply
    28,757.53x = 43,138.32 × 7,697.53
  4. Step 4: Simplify right side
    28,757.53x = 332,058,512.35
  5. Step 5: Solve for x
    x = 332,058,512.35/28,757.53
  6. Step 6: Final answer
    x = 11,546.84

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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.