Home / 20,176.20-27,845.30-13,800.69

Finding the Fourth Proportional to 20,176.20, 27,845.30 and 13,800.69

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Solution

The fourth proportional to 20,176.20, 27,845.30 and 13,800.69 is: 19,046.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,176.20 : 27,845.30 = 13,800.69 : x
  2. Step 2: Convert to fraction form
    20,176.20/27,845.30 = 13,800.69/x
  3. Step 3: Cross multiply
    20,176.20x = 27,845.30 × 13,800.69
  4. Step 4: Simplify right side
    20,176.20x = 384,284,387.76
  5. Step 5: Solve for x
    x = 384,284,387.76/20,176.20
  6. Step 6: Final answer
    x = 19,046.42

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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.