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Finding the Fourth Proportional to 20,245.01, 30,369.03 and 9,157.93

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Solution

The fourth proportional to 20,245.01, 30,369.03 and 9,157.93 is: 13,737.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,245.01 : 30,369.03 = 9,157.93 : x
  2. Step 2: Convert to fraction form
    20,245.01/30,369.03 = 9,157.93/x
  3. Step 3: Cross multiply
    20,245.01x = 30,369.03 × 9,157.93
  4. Step 4: Simplify right side
    20,245.01x = 278,117,340.64
  5. Step 5: Solve for x
    x = 278,117,340.64/20,245.01
  6. Step 6: Final answer
    x = 13,737.58

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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.