Home / 21,979.41-32,986.83-11,452.65

Finding the Fourth Proportional to 21,979.41, 32,986.83 and 11,452.65

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Solution

The fourth proportional to 21,979.41, 32,986.83 and 11,452.65 is: 17,188.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,979.41 : 32,986.83 = 11,452.65 : x
  2. Step 2: Convert to fraction form
    21,979.41/32,986.83 = 11,452.65/x
  3. Step 3: Cross multiply
    21,979.41x = 32,986.83 × 11,452.65
  4. Step 4: Simplify right side
    21,979.41x = 377,786,618.60
  5. Step 5: Solve for x
    x = 377,786,618.60/21,979.41
  6. Step 6: Final answer
    x = 17,188.21

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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.