Home / 21,979.51-32,974.67-6,397.27

Finding the Fourth Proportional to 21,979.51, 32,974.67 and 6,397.27

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Solution

The fourth proportional to 21,979.51, 32,974.67 and 6,397.27 is: 9,597.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,979.51 : 32,974.67 = 6,397.27 : x
  2. Step 2: Convert to fraction form
    21,979.51/32,974.67 = 6,397.27/x
  3. Step 3: Cross multiply
    21,979.51x = 32,974.67 × 6,397.27
  4. Step 4: Simplify right side
    21,979.51x = 210,947,867.15
  5. Step 5: Solve for x
    x = 210,947,867.15/21,979.51
  6. Step 6: Final answer
    x = 9,597.48

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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.