Home / 21,982.56-32,979.60-9,673.44

Finding the Fourth Proportional to 21,982.56, 32,979.60 and 9,673.44

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Solution

The fourth proportional to 21,982.56, 32,979.60 and 9,673.44 is: 14,512.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,982.56 : 32,979.60 = 9,673.44 : x
  2. Step 2: Convert to fraction form
    21,982.56/32,979.60 = 9,673.44/x
  3. Step 3: Cross multiply
    21,982.56x = 32,979.60 × 9,673.44
  4. Step 4: Simplify right side
    21,982.56x = 319,026,181.82
  5. Step 5: Solve for x
    x = 319,026,181.82/21,982.56
  6. Step 6: Final answer
    x = 14,512.69

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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.