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Finding the Fourth Proportional to 22,697.80, 34,104.30 and 20,163.40

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Solution

The fourth proportional to 22,697.80, 34,104.30 and 20,163.40 is: 30,296.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,697.80 : 34,104.30 = 20,163.40 : x
  2. Step 2: Convert to fraction form
    22,697.80/34,104.30 = 20,163.40/x
  3. Step 3: Cross multiply
    22,697.80x = 34,104.30 × 20,163.40
  4. Step 4: Simplify right side
    22,697.80x = 687,658,642.62
  5. Step 5: Solve for x
    x = 687,658,642.62/22,697.80
  6. Step 6: Final answer
    x = 30,296.27

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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.