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Finding the Fourth Proportional to 20,540.90, 30,797.46 and 8,053.13

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Solution

The fourth proportional to 20,540.90, 30,797.46 and 8,053.13 is: 12,074.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,540.90 : 30,797.46 = 8,053.13 : x
  2. Step 2: Convert to fraction form
    20,540.90/30,797.46 = 8,053.13/x
  3. Step 3: Cross multiply
    20,540.90x = 30,797.46 × 8,053.13
  4. Step 4: Simplify right side
    20,540.90x = 248,015,949.05
  5. Step 5: Solve for x
    x = 248,015,949.05/20,540.90
  6. Step 6: Final answer
    x = 12,074.25

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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.