Home / 21,984.62-32,979.66-7,189.56

Finding the Fourth Proportional to 21,984.62, 32,979.66 and 7,189.56

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Solution

The fourth proportional to 21,984.62, 32,979.66 and 7,189.56 is: 10,785.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,984.62 : 32,979.66 = 7,189.56 : x
  2. Step 2: Convert to fraction form
    21,984.62/32,979.66 = 7,189.56/x
  3. Step 3: Cross multiply
    21,984.62x = 32,979.66 × 7,189.56
  4. Step 4: Simplify right side
    21,984.62x = 237,109,217.39
  5. Step 5: Solve for x
    x = 237,109,217.39/21,984.62
  6. Step 6: Final answer
    x = 10,785.23

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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.