Home / 22,278.21-33,404.85-9,139.80

Finding the Fourth Proportional to 22,278.21, 33,404.85 and 9,139.80

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Solution

The fourth proportional to 22,278.21, 33,404.85 and 9,139.80 is: 13,704.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,278.21 : 33,404.85 = 9,139.80 : x
  2. Step 2: Convert to fraction form
    22,278.21/33,404.85 = 9,139.80/x
  3. Step 3: Cross multiply
    22,278.21x = 33,404.85 × 9,139.80
  4. Step 4: Simplify right side
    22,278.21x = 305,313,648.03
  5. Step 5: Solve for x
    x = 305,313,648.03/22,278.21
  6. Step 6: Final answer
    x = 13,704.59

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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.