Home / 20,629.96-30,949.22-9,379.94

Finding the Fourth Proportional to 20,629.96, 30,949.22 and 9,379.94

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Solution

The fourth proportional to 20,629.96, 30,949.22 and 9,379.94 is: 14,071.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,629.96 : 30,949.22 = 9,379.94 : x
  2. Step 2: Convert to fraction form
    20,629.96/30,949.22 = 9,379.94/x
  3. Step 3: Cross multiply
    20,629.96x = 30,949.22 × 9,379.94
  4. Step 4: Simplify right side
    20,629.96x = 290,301,695.35
  5. Step 5: Solve for x
    x = 290,301,695.35/20,629.96
  6. Step 6: Final answer
    x = 14,071.85

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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.