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Finding the Fourth Proportional to 20,144.70, 30,241.35 and 11,267.10

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Solution

The fourth proportional to 20,144.70, 30,241.35 and 11,267.10 is: 16,914.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,144.70 : 30,241.35 = 11,267.10 : x
  2. Step 2: Convert to fraction form
    20,144.70/30,241.35 = 11,267.10/x
  3. Step 3: Cross multiply
    20,144.70x = 30,241.35 × 11,267.10
  4. Step 4: Simplify right side
    20,144.70x = 340,732,314.59
  5. Step 5: Solve for x
    x = 340,732,314.59/20,144.70
  6. Step 6: Final answer
    x = 16,914.24

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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.