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Finding the Fourth Proportional to 20,530.67, 30,797.97 and 9,440.44

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Solution

The fourth proportional to 20,530.67, 30,797.97 and 9,440.44 is: 14,161.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,530.67 : 30,797.97 = 9,440.44 : x
  2. Step 2: Convert to fraction form
    20,530.67/30,797.97 = 9,440.44/x
  3. Step 3: Cross multiply
    20,530.67x = 30,797.97 × 9,440.44
  4. Step 4: Simplify right side
    20,530.67x = 290,746,387.91
  5. Step 5: Solve for x
    x = 290,746,387.91/20,530.67
  6. Step 6: Final answer
    x = 14,161.57

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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.