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Finding the Fourth Proportional to 22,375.97, 30,879.51 and 12,303.89

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Solution

The fourth proportional to 22,375.97, 30,879.51 and 12,303.89 is: 16,979.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,375.97 : 30,879.51 = 12,303.89 : x
  2. Step 2: Convert to fraction form
    22,375.97/30,879.51 = 12,303.89/x
  3. Step 3: Cross multiply
    22,375.97x = 30,879.51 × 12,303.89
  4. Step 4: Simplify right side
    22,375.97x = 379,938,094.29
  5. Step 5: Solve for x
    x = 379,938,094.29/22,375.97
  6. Step 6: Final answer
    x = 16,979.74

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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.