Home / 20,231.51-30,350.73-6,191.19

Finding the Fourth Proportional to 20,231.51, 30,350.73 and 6,191.19

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Solution

The fourth proportional to 20,231.51, 30,350.73 and 6,191.19 is: 9,287.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,231.51 : 30,350.73 = 6,191.19 : x
  2. Step 2: Convert to fraction form
    20,231.51/30,350.73 = 6,191.19/x
  3. Step 3: Cross multiply
    20,231.51x = 30,350.73 × 6,191.19
  4. Step 4: Simplify right side
    20,231.51x = 187,907,136.07
  5. Step 5: Solve for x
    x = 187,907,136.07/20,231.51
  6. Step 6: Final answer
    x = 9,287.85

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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.