Home / 22,192.97-30,627.21-12,761.54

Finding the Fourth Proportional to 22,192.97, 30,627.21 and 12,761.54

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Solution

The fourth proportional to 22,192.97, 30,627.21 and 12,761.54 is: 17,611.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,192.97 : 30,627.21 = 12,761.54 : x
  2. Step 2: Convert to fraction form
    22,192.97/30,627.21 = 12,761.54/x
  3. Step 3: Cross multiply
    22,192.97x = 30,627.21 × 12,761.54
  4. Step 4: Simplify right side
    22,192.97x = 390,850,212.37
  5. Step 5: Solve for x
    x = 390,850,212.37/22,192.97
  6. Step 6: Final answer
    x = 17,611.45

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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.