Home / 22,262.45-30,721.86-12,190.89

Finding the Fourth Proportional to 22,262.45, 30,721.86 and 12,190.89

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Solution

The fourth proportional to 22,262.45, 30,721.86 and 12,190.89 is: 16,823.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,262.45 : 30,721.86 = 12,190.89 : x
  2. Step 2: Convert to fraction form
    22,262.45/30,721.86 = 12,190.89/x
  3. Step 3: Cross multiply
    22,262.45x = 30,721.86 × 12,190.89
  4. Step 4: Simplify right side
    22,262.45x = 374,526,815.86
  5. Step 5: Solve for x
    x = 374,526,815.86/22,262.45
  6. Step 6: Final answer
    x = 16,823.26

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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.