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Finding the Fourth Proportional to 28,767.88, 43,150.74 and 11,900.44

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Solution

The fourth proportional to 28,767.88, 43,150.74 and 11,900.44 is: 17,850.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,767.88 : 43,150.74 = 11,900.44 : x
  2. Step 2: Convert to fraction form
    28,767.88/43,150.74 = 11,900.44/x
  3. Step 3: Cross multiply
    28,767.88x = 43,150.74 × 11,900.44
  4. Step 4: Simplify right side
    28,767.88x = 513,512,792.33
  5. Step 5: Solve for x
    x = 513,512,792.33/28,767.88
  6. Step 6: Final answer
    x = 17,850.21

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.