Home / 20,336.96-30,499.97-7,185.80

Finding the Fourth Proportional to 20,336.96, 30,499.97 and 7,185.80

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Solution

The fourth proportional to 20,336.96, 30,499.97 and 7,185.80 is: 10,776.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,336.96 : 30,499.97 = 7,185.80 : x
  2. Step 2: Convert to fraction form
    20,336.96/30,499.97 = 7,185.80/x
  3. Step 3: Cross multiply
    20,336.96x = 30,499.97 × 7,185.80
  4. Step 4: Simplify right side
    20,336.96x = 219,166,496.00
  5. Step 5: Solve for x
    x = 219,166,496.00/20,336.96
  6. Step 6: Final answer
    x = 10,776.76

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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.