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Finding the Fourth Proportional to 33,383.20, 49,945.20 and 21,719.20

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Solution

The fourth proportional to 33,383.20, 49,945.20 and 21,719.20 is: 32,494.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,383.20 : 49,945.20 = 21,719.20 : x
  2. Step 2: Convert to fraction form
    33,383.20/49,945.20 = 21,719.20/x
  3. Step 3: Cross multiply
    33,383.20x = 49,945.20 × 21,719.20
  4. Step 4: Simplify right side
    33,383.20x = 1,084,769,787.84
  5. Step 5: Solve for x
    x = 1,084,769,787.84/33,383.20
  6. Step 6: Final answer
    x = 32,494.48

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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.