Home / 21,652.89-32,480.07-11,120.04

Finding the Fourth Proportional to 21,652.89, 32,480.07 and 11,120.04

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Solution

The fourth proportional to 21,652.89, 32,480.07 and 11,120.04 is: 16,680.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,652.89 : 32,480.07 = 11,120.04 : x
  2. Step 2: Convert to fraction form
    21,652.89/32,480.07 = 11,120.04/x
  3. Step 3: Cross multiply
    21,652.89x = 32,480.07 × 11,120.04
  4. Step 4: Simplify right side
    21,652.89x = 361,179,677.60
  5. Step 5: Solve for x
    x = 361,179,677.60/21,652.89
  6. Step 6: Final answer
    x = 16,680.44

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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.