Home / 20,318.35-28,028.04-11,819.52

Finding the Fourth Proportional to 20,318.35, 28,028.04 and 11,819.52

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Solution

The fourth proportional to 20,318.35, 28,028.04 and 11,819.52 is: 16,304.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,318.35 : 28,028.04 = 11,819.52 : x
  2. Step 2: Convert to fraction form
    20,318.35/28,028.04 = 11,819.52/x
  3. Step 3: Cross multiply
    20,318.35x = 28,028.04 × 11,819.52
  4. Step 4: Simplify right side
    20,318.35x = 331,277,874.24
  5. Step 5: Solve for x
    x = 331,277,874.24/20,318.35
  6. Step 6: Final answer
    x = 16,304.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.