Home / 21,986.43-32,979.33-5,346.42

Finding the Fourth Proportional to 21,986.43, 32,979.33 and 5,346.42

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Solution

The fourth proportional to 21,986.43, 32,979.33 and 5,346.42 is: 8,019.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,986.43 : 32,979.33 = 5,346.42 : x
  2. Step 2: Convert to fraction form
    21,986.43/32,979.33 = 5,346.42/x
  3. Step 3: Cross multiply
    21,986.43x = 32,979.33 × 5,346.42
  4. Step 4: Simplify right side
    21,986.43x = 176,321,349.50
  5. Step 5: Solve for x
    x = 176,321,349.50/21,986.43
  6. Step 6: Final answer
    x = 8,019.55

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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.