Home / 20,788.80-31,183.38-5,997.76

Finding the Fourth Proportional to 20,788.80, 31,183.38 and 5,997.76

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Solution

The fourth proportional to 20,788.80, 31,183.38 and 5,997.76 is: 8,996.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,788.80 : 31,183.38 = 5,997.76 : x
  2. Step 2: Convert to fraction form
    20,788.80/31,183.38 = 5,997.76/x
  3. Step 3: Cross multiply
    20,788.80x = 31,183.38 × 5,997.76
  4. Step 4: Simplify right side
    20,788.80x = 187,030,429.23
  5. Step 5: Solve for x
    x = 187,030,429.23/20,788.80
  6. Step 6: Final answer
    x = 8,996.69

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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.