Home / 33,242.78-45,879.48-21,144.44

Finding the Fourth Proportional to 33,242.78, 45,879.48 and 21,144.44

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Solution

The fourth proportional to 33,242.78, 45,879.48 and 21,144.44 is: 29,182.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,242.78 : 45,879.48 = 21,144.44 : x
  2. Step 2: Convert to fraction form
    33,242.78/45,879.48 = 21,144.44/x
  3. Step 3: Cross multiply
    33,242.78x = 45,879.48 × 21,144.44
  4. Step 4: Simplify right side
    33,242.78x = 970,095,682.69
  5. Step 5: Solve for x
    x = 970,095,682.69/33,242.78
  6. Step 6: Final answer
    x = 29,182.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.