Home / 20,141.26-27,795.30-11,189.58

Finding the Fourth Proportional to 20,141.26, 27,795.30 and 11,189.58

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Solution

The fourth proportional to 20,141.26, 27,795.30 and 11,189.58 is: 15,441.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,141.26 : 27,795.30 = 11,189.58 : x
  2. Step 2: Convert to fraction form
    20,141.26/27,795.30 = 11,189.58/x
  3. Step 3: Cross multiply
    20,141.26x = 27,795.30 × 11,189.58
  4. Step 4: Simplify right side
    20,141.26x = 311,017,732.97
  5. Step 5: Solve for x
    x = 311,017,732.97/20,141.26
  6. Step 6: Final answer
    x = 15,441.82

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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.