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Finding the Fourth Proportional to 36,949.78, 50,990.64 and 20,182.78

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Solution

The fourth proportional to 36,949.78, 50,990.64 and 20,182.78 is: 27,852.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,949.78 : 50,990.64 = 20,182.78 : x
  2. Step 2: Convert to fraction form
    36,949.78/50,990.64 = 20,182.78/x
  3. Step 3: Cross multiply
    36,949.78x = 50,990.64 × 20,182.78
  4. Step 4: Simplify right side
    36,949.78x = 1,029,132,869.18
  5. Step 5: Solve for x
    x = 1,029,132,869.18/36,949.78
  6. Step 6: Final answer
    x = 27,852.21

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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.