Home / 22,262.10-30,721.70-12,190.60

Finding the Fourth Proportional to 22,262.10, 30,721.70 and 12,190.60

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Solution

The fourth proportional to 22,262.10, 30,721.70 and 12,190.60 is: 16,823.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,262.10 : 30,721.70 = 12,190.60 : x
  2. Step 2: Convert to fraction form
    22,262.10/30,721.70 = 12,190.60/x
  3. Step 3: Cross multiply
    22,262.10x = 30,721.70 × 12,190.60
  4. Step 4: Simplify right side
    22,262.10x = 374,515,956.02
  5. Step 5: Solve for x
    x = 374,515,956.02/22,262.10
  6. Step 6: Final answer
    x = 16,823.03

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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.