Home / 22,310.90-33,284.07-20,720.06

Finding the Fourth Proportional to 22,310.90, 33,284.07 and 20,720.06

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Solution

The fourth proportional to 22,310.90, 33,284.07 and 20,720.06 is: 30,910.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,310.90 : 33,284.07 = 20,720.06 : x
  2. Step 2: Convert to fraction form
    22,310.90/33,284.07 = 20,720.06/x
  3. Step 3: Cross multiply
    22,310.90x = 33,284.07 × 20,720.06
  4. Step 4: Simplify right side
    22,310.90x = 689,647,838.72
  5. Step 5: Solve for x
    x = 689,647,838.72/22,310.90
  6. Step 6: Final answer
    x = 30,910.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.