Home / 22,262.22-30,721.86-12,190.66

Finding the Fourth Proportional to 22,262.22, 30,721.86 and 12,190.66

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Solution

The fourth proportional to 22,262.22, 30,721.86 and 12,190.66 is: 16,823.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,262.22 : 30,721.86 = 12,190.66 : x
  2. Step 2: Convert to fraction form
    22,262.22/30,721.86 = 12,190.66/x
  3. Step 3: Cross multiply
    22,262.22x = 30,721.86 × 12,190.66
  4. Step 4: Simplify right side
    22,262.22x = 374,519,749.83
  5. Step 5: Solve for x
    x = 374,519,749.83/22,262.22
  6. Step 6: Final answer
    x = 16,823.11

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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.