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Finding the Fourth Proportional to 20,166.75, 30,250.01 and 5,173.81

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Solution

The fourth proportional to 20,166.75, 30,250.01 and 5,173.81 is: 7,760.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,166.75 : 30,250.01 = 5,173.81 : x
  2. Step 2: Convert to fraction form
    20,166.75/30,250.01 = 5,173.81/x
  3. Step 3: Cross multiply
    20,166.75x = 30,250.01 × 5,173.81
  4. Step 4: Simplify right side
    20,166.75x = 156,507,741.55
  5. Step 5: Solve for x
    x = 156,507,741.55/20,166.75
  6. Step 6: Final answer
    x = 7,760.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.