Home / 22,249.61-30,704.49-12,178.05

Finding the Fourth Proportional to 22,249.61, 30,704.49 and 12,178.05

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Solution

The fourth proportional to 22,249.61, 30,704.49 and 12,178.05 is: 16,805.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,249.61 : 30,704.49 = 12,178.05 : x
  2. Step 2: Convert to fraction form
    22,249.61/30,704.49 = 12,178.05/x
  3. Step 3: Cross multiply
    22,249.61x = 30,704.49 × 12,178.05
  4. Step 4: Simplify right side
    22,249.61x = 373,920,733.55
  5. Step 5: Solve for x
    x = 373,920,733.55/22,249.61
  6. Step 6: Final answer
    x = 16,805.72

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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.