Home / 20,544.48-30,789.72-11,188.44

Finding the Fourth Proportional to 20,544.48, 30,789.72 and 11,188.44

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Solution

The fourth proportional to 20,544.48, 30,789.72 and 11,188.44 is: 16,767.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,544.48 : 30,789.72 = 11,188.44 : x
  2. Step 2: Convert to fraction form
    20,544.48/30,789.72 = 11,188.44/x
  3. Step 3: Cross multiply
    20,544.48x = 30,789.72 × 11,188.44
  4. Step 4: Simplify right side
    20,544.48x = 344,488,934.84
  5. Step 5: Solve for x
    x = 344,488,934.84/20,544.48
  6. Step 6: Final answer
    x = 16,767.96

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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.