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Finding the Fourth Proportional to 36,878.87, 50,891.32 and 20,111.87

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Solution

The fourth proportional to 36,878.87, 50,891.32 and 20,111.87 is: 27,753.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,878.87 : 50,891.32 = 20,111.87 : x
  2. Step 2: Convert to fraction form
    36,878.87/50,891.32 = 20,111.87/x
  3. Step 3: Cross multiply
    36,878.87x = 50,891.32 × 20,111.87
  4. Step 4: Simplify right side
    36,878.87x = 1,023,519,764.34
  5. Step 5: Solve for x
    x = 1,023,519,764.34/36,878.87
  6. Step 6: Final answer
    x = 27,753.55

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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.