Home / 21,479.22-32,206.20-9,786.06

Finding the Fourth Proportional to 21,479.22, 32,206.20 and 9,786.06

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Solution

The fourth proportional to 21,479.22, 32,206.20 and 9,786.06 is: 14,673.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,479.22 : 32,206.20 = 9,786.06 : x
  2. Step 2: Convert to fraction form
    21,479.22/32,206.20 = 9,786.06/x
  3. Step 3: Cross multiply
    21,479.22x = 32,206.20 × 9,786.06
  4. Step 4: Simplify right side
    21,479.22x = 315,171,805.57
  5. Step 5: Solve for x
    x = 315,171,805.57/21,479.22
  6. Step 6: Final answer
    x = 14,673.34

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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.