Home / 21,629.30-32,448.20-9,149.22

Finding the Fourth Proportional to 21,629.30, 32,448.20 and 9,149.22

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Solution

The fourth proportional to 21,629.30, 32,448.20 and 9,149.22 is: 13,725.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,629.30 : 32,448.20 = 9,149.22 : x
  2. Step 2: Convert to fraction form
    21,629.30/32,448.20 = 9,149.22/x
  3. Step 3: Cross multiply
    21,629.30x = 32,448.20 × 9,149.22
  4. Step 4: Simplify right side
    21,629.30x = 296,875,674.66
  5. Step 5: Solve for x
    x = 296,875,674.66/21,629.30
  6. Step 6: Final answer
    x = 13,725.63

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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.