Home / 20,514.94-30,830.14-12,196.44

Finding the Fourth Proportional to 20,514.94, 30,830.14 and 12,196.44

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Solution

The fourth proportional to 20,514.94, 30,830.14 and 12,196.44 is: 18,328.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,514.94 : 30,830.14 = 12,196.44 : x
  2. Step 2: Convert to fraction form
    20,514.94/30,830.14 = 12,196.44/x
  3. Step 3: Cross multiply
    20,514.94x = 30,830.14 × 12,196.44
  4. Step 4: Simplify right side
    20,514.94x = 376,017,952.70
  5. Step 5: Solve for x
    x = 376,017,952.70/20,514.94
  6. Step 6: Final answer
    x = 18,328.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.