Home / 26,693.60-39,997.20-16,815.20

Finding the Fourth Proportional to 26,693.60, 39,997.20 and 16,815.20

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Solution

The fourth proportional to 26,693.60, 39,997.20 and 16,815.20 is: 25,195.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,693.60 : 39,997.20 = 16,815.20 : x
  2. Step 2: Convert to fraction form
    26,693.60/39,997.20 = 16,815.20/x
  3. Step 3: Cross multiply
    26,693.60x = 39,997.20 × 16,815.20
  4. Step 4: Simplify right side
    26,693.60x = 672,560,917.44
  5. Step 5: Solve for x
    x = 672,560,917.44/26,693.60
  6. Step 6: Final answer
    x = 25,195.59

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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.