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Finding the Fourth Proportional to 36,801.81, 50,786.36 and 20,666.88

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Solution

The fourth proportional to 36,801.81, 50,786.36 and 20,666.88 is: 28,520.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,801.81 : 50,786.36 = 20,666.88 : x
  2. Step 2: Convert to fraction form
    36,801.81/50,786.36 = 20,666.88/x
  3. Step 3: Cross multiply
    36,801.81x = 50,786.36 × 20,666.88
  4. Step 4: Simplify right side
    36,801.81x = 1,049,595,504.42
  5. Step 5: Solve for x
    x = 1,049,595,504.42/36,801.81
  6. Step 6: Final answer
    x = 28,520.21

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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.