Home / 21,502.20-32,270.58-11,648.28

Finding the Fourth Proportional to 21,502.20, 32,270.58 and 11,648.28

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Solution

The fourth proportional to 21,502.20, 32,270.58 and 11,648.28 is: 17,481.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,502.20 : 32,270.58 = 11,648.28 : x
  2. Step 2: Convert to fraction form
    21,502.20/32,270.58 = 11,648.28/x
  3. Step 3: Cross multiply
    21,502.20x = 32,270.58 × 11,648.28
  4. Step 4: Simplify right side
    21,502.20x = 375,896,751.60
  5. Step 5: Solve for x
    x = 375,896,751.60/21,502.20
  6. Step 6: Final answer
    x = 17,481.78

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.