Home / 20,226.96-30,329.46-10,878.12

Finding the Fourth Proportional to 20,226.96, 30,329.46 and 10,878.12

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Solution

The fourth proportional to 20,226.96, 30,329.46 and 10,878.12 is: 16,311.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,226.96 : 30,329.46 = 10,878.12 : x
  2. Step 2: Convert to fraction form
    20,226.96/30,329.46 = 10,878.12/x
  3. Step 3: Cross multiply
    20,226.96x = 30,329.46 × 10,878.12
  4. Step 4: Simplify right side
    20,226.96x = 329,927,505.42
  5. Step 5: Solve for x
    x = 329,927,505.42/20,226.96
  6. Step 6: Final answer
    x = 16,311.27

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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.