Home / 22,018.78-33,028.05-5,378.90

Finding the Fourth Proportional to 22,018.78, 33,028.05 and 5,378.90

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Solution

The fourth proportional to 22,018.78, 33,028.05 and 5,378.90 is: 8,068.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,018.78 : 33,028.05 = 5,378.90 : x
  2. Step 2: Convert to fraction form
    22,018.78/33,028.05 = 5,378.90/x
  3. Step 3: Cross multiply
    22,018.78x = 33,028.05 × 5,378.90
  4. Step 4: Simplify right side
    22,018.78x = 177,654,660.72
  5. Step 5: Solve for x
    x = 177,654,660.72/22,018.78
  6. Step 6: Final answer
    x = 8,068.33

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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.