Home / 13,705.35-20,556.43-3,845.48

Finding the Fourth Proportional to 13,705.35, 20,556.43 and 3,845.48

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Solution

The fourth proportional to 13,705.35, 20,556.43 and 3,845.48 is: 5,767.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,705.35 : 20,556.43 = 3,845.48 : x
  2. Step 2: Convert to fraction form
    13,705.35/20,556.43 = 3,845.48/x
  3. Step 3: Cross multiply
    13,705.35x = 20,556.43 × 3,845.48
  4. Step 4: Simplify right side
    13,705.35x = 79,049,249.67
  5. Step 5: Solve for x
    x = 79,049,249.67/13,705.35
  6. Step 6: Final answer
    x = 5,767.77

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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.