Home / 22,205.75-33,292.16-13,438.58

Finding the Fourth Proportional to 22,205.75, 33,292.16 and 13,438.58

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Solution

The fourth proportional to 22,205.75, 33,292.16 and 13,438.58 is: 20,147.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,205.75 : 33,292.16 = 13,438.58 : x
  2. Step 2: Convert to fraction form
    22,205.75/33,292.16 = 13,438.58/x
  3. Step 3: Cross multiply
    22,205.75x = 33,292.16 × 13,438.58
  4. Step 4: Simplify right side
    22,205.75x = 447,399,421.96
  5. Step 5: Solve for x
    x = 447,399,421.96/22,205.75
  6. Step 6: Final answer
    x = 20,147.91

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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.