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Finding the Fourth Proportional to 33,271.70, 49,907.55 and 20,149.70

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Solution

The fourth proportional to 33,271.70, 49,907.55 and 20,149.70 is: 30,224.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,271.70 : 49,907.55 = 20,149.70 : x
  2. Step 2: Convert to fraction form
    33,271.70/49,907.55 = 20,149.70/x
  3. Step 3: Cross multiply
    33,271.70x = 49,907.55 × 20,149.70
  4. Step 4: Simplify right side
    33,271.70x = 1,005,622,160.24
  5. Step 5: Solve for x
    x = 1,005,622,160.24/33,271.70
  6. Step 6: Final answer
    x = 30,224.55

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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.