Home / 20,580.62-30,845.61-11,703.39

Finding the Fourth Proportional to 20,580.62, 30,845.61 and 11,703.39

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Solution

The fourth proportional to 20,580.62, 30,845.61 and 11,703.39 is: 17,540.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,580.62 : 30,845.61 = 11,703.39 : x
  2. Step 2: Convert to fraction form
    20,580.62/30,845.61 = 11,703.39/x
  3. Step 3: Cross multiply
    20,580.62x = 30,845.61 × 11,703.39
  4. Step 4: Simplify right side
    20,580.62x = 360,998,203.62
  5. Step 5: Solve for x
    x = 360,998,203.62/20,580.62
  6. Step 6: Final answer
    x = 17,540.69

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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.