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Finding the Fourth Proportional to 33,388.80, 50,076.81 and 10,015.20

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Solution

The fourth proportional to 33,388.80, 50,076.81 and 10,015.20 is: 15,020.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,388.80 : 50,076.81 = 10,015.20 : x
  2. Step 2: Convert to fraction form
    33,388.80/50,076.81 = 10,015.20/x
  3. Step 3: Cross multiply
    33,388.80x = 50,076.81 × 10,015.20
  4. Step 4: Simplify right side
    33,388.80x = 501,529,267.51
  5. Step 5: Solve for x
    x = 501,529,267.51/33,388.80
  6. Step 6: Final answer
    x = 15,020.88

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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.