Home / 36,190.72-49,942.92-20,275.30

Finding the Fourth Proportional to 36,190.72, 49,942.92 and 20,275.30

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Solution

The fourth proportional to 36,190.72, 49,942.92 and 20,275.30 is: 27,979.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,190.72 : 49,942.92 = 20,275.30 : x
  2. Step 2: Convert to fraction form
    36,190.72/49,942.92 = 20,275.30/x
  3. Step 3: Cross multiply
    36,190.72x = 49,942.92 × 20,275.30
  4. Step 4: Simplify right side
    36,190.72x = 1,012,607,685.88
  5. Step 5: Solve for x
    x = 1,012,607,685.88/36,190.72
  6. Step 6: Final answer
    x = 27,979.76

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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.