Home / 37,767.80-52,120.20-20,772.80

Finding the Fourth Proportional to 37,767.80, 52,120.20 and 20,772.80

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Solution

The fourth proportional to 37,767.80, 52,120.20 and 20,772.80 is: 28,666.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,767.80 : 52,120.20 = 20,772.80 : x
  2. Step 2: Convert to fraction form
    37,767.80/52,120.20 = 20,772.80/x
  3. Step 3: Cross multiply
    37,767.80x = 52,120.20 × 20,772.80
  4. Step 4: Simplify right side
    37,767.80x = 1,082,682,490.56
  5. Step 5: Solve for x
    x = 1,082,682,490.56/37,767.80
  6. Step 6: Final answer
    x = 28,666.81

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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.