Home / 20,282.46-30,423.23-9,181.10

Finding the Fourth Proportional to 20,282.46, 30,423.23 and 9,181.10

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Solution

The fourth proportional to 20,282.46, 30,423.23 and 9,181.10 is: 13,771.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,282.46 : 30,423.23 = 9,181.10 : x
  2. Step 2: Convert to fraction form
    20,282.46/30,423.23 = 9,181.10/x
  3. Step 3: Cross multiply
    20,282.46x = 30,423.23 × 9,181.10
  4. Step 4: Simplify right side
    20,282.46x = 279,318,716.95
  5. Step 5: Solve for x
    x = 279,318,716.95/20,282.46
  6. Step 6: Final answer
    x = 13,771.44

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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.