Home / 21,986.62-32,982.66-7,191.56

Finding the Fourth Proportional to 21,986.62, 32,982.66 and 7,191.56

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Solution

The fourth proportional to 21,986.62, 32,982.66 and 7,191.56 is: 10,788.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,986.62 : 32,982.66 = 7,191.56 : x
  2. Step 2: Convert to fraction form
    21,986.62/32,982.66 = 7,191.56/x
  3. Step 3: Cross multiply
    21,986.62x = 32,982.66 × 7,191.56
  4. Step 4: Simplify right side
    21,986.62x = 237,196,778.35
  5. Step 5: Solve for x
    x = 237,196,778.35/21,986.62
  6. Step 6: Final answer
    x = 10,788.23

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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.