Home / 20,659.55-30,991.53-6,614.56

Finding the Fourth Proportional to 20,659.55, 30,991.53 and 6,614.56

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Solution

The fourth proportional to 20,659.55, 30,991.53 and 6,614.56 is: 9,922.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,659.55 : 30,991.53 = 6,614.56 : x
  2. Step 2: Convert to fraction form
    20,659.55/30,991.53 = 6,614.56/x
  3. Step 3: Cross multiply
    20,659.55x = 30,991.53 × 6,614.56
  4. Step 4: Simplify right side
    20,659.55x = 204,995,146.65
  5. Step 5: Solve for x
    x = 204,995,146.65/20,659.55
  6. Step 6: Final answer
    x = 9,922.54

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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.