Home / 36,912.87-50,939.32-20,997.28

Finding the Fourth Proportional to 36,912.87, 50,939.32 and 20,997.28

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Solution

The fourth proportional to 36,912.87, 50,939.32 and 20,997.28 is: 28,976.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,912.87 : 50,939.32 = 20,997.28 : x
  2. Step 2: Convert to fraction form
    36,912.87/50,939.32 = 20,997.28/x
  3. Step 3: Cross multiply
    36,912.87x = 50,939.32 × 20,997.28
  4. Step 4: Simplify right side
    36,912.87x = 1,069,587,165.05
  5. Step 5: Solve for x
    x = 1,069,587,165.05/36,912.87
  6. Step 6: Final answer
    x = 28,976.00

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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.