Home / 22,122.51-33,107.41-13,685.55

Finding the Fourth Proportional to 22,122.51, 33,107.41 and 13,685.55

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Solution

The fourth proportional to 22,122.51, 33,107.41 and 13,685.55 is: 20,481.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,122.51 : 33,107.41 = 13,685.55 : x
  2. Step 2: Convert to fraction form
    22,122.51/33,107.41 = 13,685.55/x
  3. Step 3: Cross multiply
    22,122.51x = 33,107.41 × 13,685.55
  4. Step 4: Simplify right side
    22,122.51x = 453,093,114.93
  5. Step 5: Solve for x
    x = 453,093,114.93/22,122.51
  6. Step 6: Final answer
    x = 20,481.09

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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.