Home / 20,788.80-31,179.46-5,994.09

Finding the Fourth Proportional to 20,788.80, 31,179.46 and 5,994.09

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Solution

The fourth proportional to 20,788.80, 31,179.46 and 5,994.09 is: 8,990.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,788.80 : 31,179.46 = 5,994.09 : x
  2. Step 2: Convert to fraction form
    20,788.80/31,179.46 = 5,994.09/x
  3. Step 3: Cross multiply
    20,788.80x = 31,179.46 × 5,994.09
  4. Step 4: Simplify right side
    20,788.80x = 186,892,489.39
  5. Step 5: Solve for x
    x = 186,892,489.39/20,788.80
  6. Step 6: Final answer
    x = 8,990.06

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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.