Home / 20,944.19-31,416.69-16,764.80

Finding the Fourth Proportional to 20,944.19, 31,416.69 and 16,764.80

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Solution

The fourth proportional to 20,944.19, 31,416.69 and 16,764.80 is: 25,147.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,944.19 : 31,416.69 = 16,764.80 : x
  2. Step 2: Convert to fraction form
    20,944.19/31,416.69 = 16,764.80/x
  3. Step 3: Cross multiply
    20,944.19x = 31,416.69 × 16,764.80
  4. Step 4: Simplify right side
    20,944.19x = 526,694,367.43
  5. Step 5: Solve for x
    x = 526,694,367.43/20,944.19
  6. Step 6: Final answer
    x = 25,147.52

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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.