Home / 20,249.67-30,372.40-5,457.69

Finding the Fourth Proportional to 20,249.67, 30,372.40 and 5,457.69

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Solution

The fourth proportional to 20,249.67, 30,372.40 and 5,457.69 is: 8,185.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,249.67 : 30,372.40 = 5,457.69 : x
  2. Step 2: Convert to fraction form
    20,249.67/30,372.40 = 5,457.69/x
  3. Step 3: Cross multiply
    20,249.67x = 30,372.40 × 5,457.69
  4. Step 4: Simplify right side
    20,249.67x = 165,763,150.58
  5. Step 5: Solve for x
    x = 165,763,150.58/20,249.67
  6. Step 6: Final answer
    x = 8,185.97

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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.