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Finding the Fourth Proportional to 36,104.87, 49,829.36 and 20,190.21

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Solution

The fourth proportional to 36,104.87, 49,829.36 and 20,190.21 is: 27,865.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,104.87 : 49,829.36 = 20,190.21 : x
  2. Step 2: Convert to fraction form
    36,104.87/49,829.36 = 20,190.21/x
  3. Step 3: Cross multiply
    36,104.87x = 49,829.36 × 20,190.21
  4. Step 4: Simplify right side
    36,104.87x = 1,006,065,141.61
  5. Step 5: Solve for x
    x = 1,006,065,141.61/36,104.87
  6. Step 6: Final answer
    x = 27,865.09

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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.