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Finding the Fourth Proportional to 33,450.80, 50,176.20 and 21,009.20

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Solution

The fourth proportional to 33,450.80, 50,176.20 and 21,009.20 is: 31,513.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,450.80 : 50,176.20 = 21,009.20 : x
  2. Step 2: Convert to fraction form
    33,450.80/50,176.20 = 21,009.20/x
  3. Step 3: Cross multiply
    33,450.80x = 50,176.20 × 21,009.20
  4. Step 4: Simplify right side
    33,450.80x = 1,054,161,821.04
  5. Step 5: Solve for x
    x = 1,054,161,821.04/33,450.80
  6. Step 6: Final answer
    x = 31,513.80

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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.