Home / 36,908.89-55,387.78-20,280.51

Finding the Fourth Proportional to 36,908.89, 55,387.78 and 20,280.51

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Solution

The fourth proportional to 36,908.89, 55,387.78 and 20,280.51 is: 30,434.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,908.89 : 55,387.78 = 20,280.51 : x
  2. Step 2: Convert to fraction form
    36,908.89/55,387.78 = 20,280.51/x
  3. Step 3: Cross multiply
    36,908.89x = 55,387.78 × 20,280.51
  4. Step 4: Simplify right side
    36,908.89x = 1,123,292,375.47
  5. Step 5: Solve for x
    x = 1,123,292,375.47/36,908.89
  6. Step 6: Final answer
    x = 30,434.20

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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.