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Finding the Fourth Proportional to 36,900.87, 50,921.78 and 20,133.87

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Solution

The fourth proportional to 36,900.87, 50,921.78 and 20,133.87 is: 27,783.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,900.87 : 50,921.78 = 20,133.87 : x
  2. Step 2: Convert to fraction form
    36,900.87/50,921.78 = 20,133.87/x
  3. Step 3: Cross multiply
    36,900.87x = 50,921.78 × 20,133.87
  4. Step 4: Simplify right side
    36,900.87x = 1,025,252,398.02
  5. Step 5: Solve for x
    x = 1,025,252,398.02/36,900.87
  6. Step 6: Final answer
    x = 27,783.96

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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.