Home / 20,201.58-30,306.48-8,514.78

Finding the Fourth Proportional to 20,201.58, 30,306.48 and 8,514.78

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Solution

The fourth proportional to 20,201.58, 30,306.48 and 8,514.78 is: 12,773.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,201.58 : 30,306.48 = 8,514.78 : x
  2. Step 2: Convert to fraction form
    20,201.58/30,306.48 = 8,514.78/x
  3. Step 3: Cross multiply
    20,201.58x = 30,306.48 × 8,514.78
  4. Step 4: Simplify right side
    20,201.58x = 258,053,009.77
  5. Step 5: Solve for x
    x = 258,053,009.77/20,201.58
  6. Step 6: Final answer
    x = 12,773.90

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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.