Home / 21,367.87-32,063.28-10,979.62

Finding the Fourth Proportional to 21,367.87, 32,063.28 and 10,979.62

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Solution

The fourth proportional to 21,367.87, 32,063.28 and 10,979.62 is: 16,475.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,367.87 : 32,063.28 = 10,979.62 : x
  2. Step 2: Convert to fraction form
    21,367.87/32,063.28 = 10,979.62/x
  3. Step 3: Cross multiply
    21,367.87x = 32,063.28 × 10,979.62
  4. Step 4: Simplify right side
    21,367.87x = 352,042,630.35
  5. Step 5: Solve for x
    x = 352,042,630.35/21,367.87
  6. Step 6: Final answer
    x = 16,475.33

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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.