Home / 33,785.78-50,670.97-12,728

Finding the Fourth Proportional to 33,785.78, 50,670.97 and 12,728

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Solution

The fourth proportional to 33,785.78, 50,670.97 and 12,728 is: 19,089.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,785.78 : 50,670.97 = 12,728 : x
  2. Step 2: Convert to fraction form
    33,785.78/50,670.97 = 12,728/x
  3. Step 3: Cross multiply
    33,785.78x = 50,670.97 × 12,728
  4. Step 4: Simplify right side
    33,785.78x = 644,940,106.16
  5. Step 5: Solve for x
    x = 644,940,106.16/33,785.78
  6. Step 6: Final answer
    x = 19,089.10

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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.