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Finding the Fourth Proportional to 20,229.66, 30,323.66 and 7,746.28

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Solution

The fourth proportional to 20,229.66, 30,323.66 and 7,746.28 is: 11,611.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,229.66 : 30,323.66 = 7,746.28 : x
  2. Step 2: Convert to fraction form
    20,229.66/30,323.66 = 7,746.28/x
  3. Step 3: Cross multiply
    20,229.66x = 30,323.66 × 7,746.28
  4. Step 4: Simplify right side
    20,229.66x = 234,895,560.98
  5. Step 5: Solve for x
    x = 234,895,560.98/20,229.66
  6. Step 6: Final answer
    x = 11,611.44

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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.