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Finding the Fourth Proportional to 20,773.26, 30,984.84 and 20,150.82

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Solution

The fourth proportional to 20,773.26, 30,984.84 and 20,150.82 is: 30,056.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,773.26 : 30,984.84 = 20,150.82 : x
  2. Step 2: Convert to fraction form
    20,773.26/30,984.84 = 20,150.82/x
  3. Step 3: Cross multiply
    20,773.26x = 30,984.84 × 20,150.82
  4. Step 4: Simplify right side
    20,773.26x = 624,369,933.57
  5. Step 5: Solve for x
    x = 624,369,933.57/20,773.26
  6. Step 6: Final answer
    x = 30,056.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.