Home / 20,519.96-30,767.62-9,412.73

Finding the Fourth Proportional to 20,519.96, 30,767.62 and 9,412.73

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Solution

The fourth proportional to 20,519.96, 30,767.62 and 9,412.73 is: 14,113.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,519.96 : 30,767.62 = 9,412.73 : x
  2. Step 2: Convert to fraction form
    20,519.96/30,767.62 = 9,412.73/x
  3. Step 3: Cross multiply
    20,519.96x = 30,767.62 × 9,412.73
  4. Step 4: Simplify right side
    20,519.96x = 289,607,299.80
  5. Step 5: Solve for x
    x = 289,607,299.80/20,519.96
  6. Step 6: Final answer
    x = 14,113.44

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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.