Home / 20,899.46-31,351.94-11,039.14

Finding the Fourth Proportional to 20,899.46, 31,351.94 and 11,039.14

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Solution

The fourth proportional to 20,899.46, 31,351.94 and 11,039.14 is: 16,560.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,899.46 : 31,351.94 = 11,039.14 : x
  2. Step 2: Convert to fraction form
    20,899.46/31,351.94 = 11,039.14/x
  3. Step 3: Cross multiply
    20,899.46x = 31,351.94 × 11,039.14
  4. Step 4: Simplify right side
    20,899.46x = 346,098,454.93
  5. Step 5: Solve for x
    x = 346,098,454.93/20,899.46
  6. Step 6: Final answer
    x = 16,560.16

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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.