Home / 28,173.40-42,203.60-13,396.56

Finding the Fourth Proportional to 28,173.40, 42,203.60 and 13,396.56

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Solution

The fourth proportional to 28,173.40, 42,203.60 and 13,396.56 is: 20,067.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,173.40 : 42,203.60 = 13,396.56 : x
  2. Step 2: Convert to fraction form
    28,173.40/42,203.60 = 13,396.56/x
  3. Step 3: Cross multiply
    28,173.40x = 42,203.60 × 13,396.56
  4. Step 4: Simplify right side
    28,173.40x = 565,383,059.62
  5. Step 5: Solve for x
    x = 565,383,059.62/28,173.40
  6. Step 6: Final answer
    x = 20,067.97

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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.