Home / 21,481.47-32,212.69-11,483.79

Finding the Fourth Proportional to 21,481.47, 32,212.69 and 11,483.79

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Solution

The fourth proportional to 21,481.47, 32,212.69 and 11,483.79 is: 17,220.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,481.47 : 32,212.69 = 11,483.79 : x
  2. Step 2: Convert to fraction form
    21,481.47/32,212.69 = 11,483.79/x
  3. Step 3: Cross multiply
    21,481.47x = 32,212.69 × 11,483.79
  4. Step 4: Simplify right side
    21,481.47x = 369,923,767.30
  5. Step 5: Solve for x
    x = 369,923,767.30/21,481.47
  6. Step 6: Final answer
    x = 17,220.60

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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.