Home / 33,243.78-45,880.86-21,145.44

Finding the Fourth Proportional to 33,243.78, 45,880.86 and 21,145.44

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Solution

The fourth proportional to 33,243.78, 45,880.86 and 21,145.44 is: 29,183.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,243.78 : 45,880.86 = 21,145.44 : x
  2. Step 2: Convert to fraction form
    33,243.78/45,880.86 = 21,145.44/x
  3. Step 3: Cross multiply
    33,243.78x = 45,880.86 × 21,145.44
  4. Step 4: Simplify right side
    33,243.78x = 970,170,742.87
  5. Step 5: Solve for x
    x = 970,170,742.87/33,243.78
  6. Step 6: Final answer
    x = 29,183.53

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1.5x scale

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.