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Finding the Fourth Proportional to 33,279, 49,920.12 and 9,905.64

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Solution

The fourth proportional to 33,279, 49,920.12 and 9,905.64 is: 14,858.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,279 : 49,920.12 = 9,905.64 : x
  2. Step 2: Convert to fraction form
    33,279/49,920.12 = 9,905.64/x
  3. Step 3: Cross multiply
    33,279x = 49,920.12 × 9,905.64
  4. Step 4: Simplify right side
    33,279x = 494,490,737.48
  5. Step 5: Solve for x
    x = 494,490,737.48/33,279
  6. Step 6: Final answer
    x = 14,858.94

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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.