Home / 20,446.20-30,678.48-9,910.44

Finding the Fourth Proportional to 20,446.20, 30,678.48 and 9,910.44

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Solution

The fourth proportional to 20,446.20, 30,678.48 and 9,910.44 is: 14,870.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,446.20 : 30,678.48 = 9,910.44 : x
  2. Step 2: Convert to fraction form
    20,446.20/30,678.48 = 9,910.44/x
  3. Step 3: Cross multiply
    20,446.20x = 30,678.48 × 9,910.44
  4. Step 4: Simplify right side
    20,446.20x = 304,037,235.33
  5. Step 5: Solve for x
    x = 304,037,235.33/20,446.20
  6. Step 6: Final answer
    x = 14,870.11

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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.