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Finding the Fourth Proportional to 20,249.34, 30,373.83 and 6,398.34

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Solution

The fourth proportional to 20,249.34, 30,373.83 and 6,398.34 is: 9,597.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,249.34 : 30,373.83 = 6,398.34 : x
  2. Step 2: Convert to fraction form
    20,249.34/30,373.83 = 6,398.34/x
  3. Step 3: Cross multiply
    20,249.34x = 30,373.83 × 6,398.34
  4. Step 4: Simplify right side
    20,249.34x = 194,342,091.44
  5. Step 5: Solve for x
    x = 194,342,091.44/20,249.34
  6. Step 6: Final answer
    x = 9,597.45

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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.