Home / 21,629.45-32,448.50-9,149.42

Finding the Fourth Proportional to 21,629.45, 32,448.50 and 9,149.42

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Solution

The fourth proportional to 21,629.45, 32,448.50 and 9,149.42 is: 13,725.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,629.45 : 32,448.50 = 9,149.42 : x
  2. Step 2: Convert to fraction form
    21,629.45/32,448.50 = 9,149.42/x
  3. Step 3: Cross multiply
    21,629.45x = 32,448.50 × 9,149.42
  4. Step 4: Simplify right side
    21,629.45x = 296,884,746.88
  5. Step 5: Solve for x
    x = 296,884,746.88/21,629.45
  6. Step 6: Final answer
    x = 13,725.95

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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.