Home / 20,189.43-27,862.94-11,693.85

Finding the Fourth Proportional to 20,189.43, 27,862.94 and 11,693.85

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Solution

The fourth proportional to 20,189.43, 27,862.94 and 11,693.85 is: 16,138.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,189.43 : 27,862.94 = 11,693.85 : x
  2. Step 2: Convert to fraction form
    20,189.43/27,862.94 = 11,693.85/x
  3. Step 3: Cross multiply
    20,189.43x = 27,862.94 × 11,693.85
  4. Step 4: Simplify right side
    20,189.43x = 325,824,982.45
  5. Step 5: Solve for x
    x = 325,824,982.45/20,189.43
  6. Step 6: Final answer
    x = 16,138.39

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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.