Home / 22,375.22-30,877.18-12,303.68

Finding the Fourth Proportional to 22,375.22, 30,877.18 and 12,303.68

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Solution

The fourth proportional to 22,375.22, 30,877.18 and 12,303.68 is: 16,978.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,375.22 : 30,877.18 = 12,303.68 : x
  2. Step 2: Convert to fraction form
    22,375.22/30,877.18 = 12,303.68/x
  3. Step 3: Cross multiply
    22,375.22x = 30,877.18 × 12,303.68
  4. Step 4: Simplify right side
    22,375.22x = 379,902,942.02
  5. Step 5: Solve for x
    x = 379,902,942.02/22,375.22
  6. Step 6: Final answer
    x = 16,978.74

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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.