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Finding the Fourth Proportional to 20,073.98, 30,094.01 and 12,662.12

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Solution

The fourth proportional to 20,073.98, 30,094.01 and 12,662.12 is: 18,982.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,073.98 : 30,094.01 = 12,662.12 : x
  2. Step 2: Convert to fraction form
    20,073.98/30,094.01 = 12,662.12/x
  3. Step 3: Cross multiply
    20,073.98x = 30,094.01 × 12,662.12
  4. Step 4: Simplify right side
    20,073.98x = 381,053,752.12
  5. Step 5: Solve for x
    x = 381,053,752.12/20,073.98
  6. Step 6: Final answer
    x = 18,982.48

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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.