Home / 22,292.05-30,763.75-12,221.33

Finding the Fourth Proportional to 22,292.05, 30,763.75 and 12,221.33

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Solution

The fourth proportional to 22,292.05, 30,763.75 and 12,221.33 is: 16,865.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,292.05 : 30,763.75 = 12,221.33 : x
  2. Step 2: Convert to fraction form
    22,292.05/30,763.75 = 12,221.33/x
  3. Step 3: Cross multiply
    22,292.05x = 30,763.75 × 12,221.33
  4. Step 4: Simplify right side
    22,292.05x = 375,973,940.79
  5. Step 5: Solve for x
    x = 375,973,940.79/22,292.05
  6. Step 6: Final answer
    x = 16,865.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.