Home / 20,487.25-30,743.70-8,800.44

Finding the Fourth Proportional to 20,487.25, 30,743.70 and 8,800.44

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Solution

The fourth proportional to 20,487.25, 30,743.70 and 8,800.44 is: 13,206.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,487.25 : 30,743.70 = 8,800.44 : x
  2. Step 2: Convert to fraction form
    20,487.25/30,743.70 = 8,800.44/x
  3. Step 3: Cross multiply
    20,487.25x = 30,743.70 × 8,800.44
  4. Step 4: Simplify right side
    20,487.25x = 270,558,087.23
  5. Step 5: Solve for x
    x = 270,558,087.23/20,487.25
  6. Step 6: Final answer
    x = 13,206.17

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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.