Home / 37,172.20-51,297.42-20,176.78

Finding the Fourth Proportional to 37,172.20, 51,297.42 and 20,176.78

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Solution

The fourth proportional to 37,172.20, 51,297.42 and 20,176.78 is: 27,843.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,172.20 : 51,297.42 = 20,176.78 : x
  2. Step 2: Convert to fraction form
    37,172.20/51,297.42 = 20,176.78/x
  3. Step 3: Cross multiply
    37,172.20x = 51,297.42 × 20,176.78
  4. Step 4: Simplify right side
    37,172.20x = 1,035,016,757.91
  5. Step 5: Solve for x
    x = 1,035,016,757.91/37,172.20
  6. Step 6: Final answer
    x = 27,843.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.