Home / 20,149.19-30,228.91-11,836.24

Finding the Fourth Proportional to 20,149.19, 30,228.91 and 11,836.24

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Solution

The fourth proportional to 20,149.19, 30,228.91 and 11,836.24 is: 17,757.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,149.19 : 30,228.91 = 11,836.24 : x
  2. Step 2: Convert to fraction form
    20,149.19/30,228.91 = 11,836.24/x
  3. Step 3: Cross multiply
    20,149.19x = 30,228.91 × 11,836.24
  4. Step 4: Simplify right side
    20,149.19x = 357,796,633.70
  5. Step 5: Solve for x
    x = 357,796,633.70/20,149.19
  6. Step 6: Final answer
    x = 17,757.37

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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.