Home / 18,944.20-28,392.30-7,241.80

Finding the Fourth Proportional to 18,944.20, 28,392.30 and 7,241.80

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Solution

The fourth proportional to 18,944.20, 28,392.30 and 7,241.80 is: 10,853.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,944.20 : 28,392.30 = 7,241.80 : x
  2. Step 2: Convert to fraction form
    18,944.20/28,392.30 = 7,241.80/x
  3. Step 3: Cross multiply
    18,944.20x = 28,392.30 × 7,241.80
  4. Step 4: Simplify right side
    18,944.20x = 205,611,358.14
  5. Step 5: Solve for x
    x = 205,611,358.14/18,944.20
  6. Step 6: Final answer
    x = 10,853.53

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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.