Home / 20,336.20-30,482.46-13,294.12

Finding the Fourth Proportional to 20,336.20, 30,482.46 and 13,294.12

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Solution

The fourth proportional to 20,336.20, 30,482.46 and 13,294.12 is: 19,926.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,336.20 : 30,482.46 = 13,294.12 : x
  2. Step 2: Convert to fraction form
    20,336.20/30,482.46 = 13,294.12/x
  3. Step 3: Cross multiply
    20,336.20x = 30,482.46 × 13,294.12
  4. Step 4: Simplify right side
    20,336.20x = 405,237,481.14
  5. Step 5: Solve for x
    x = 405,237,481.14/20,336.20
  6. Step 6: Final answer
    x = 19,926.90

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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.