Home / 21,487.12-32,229.96-8,836.44

Finding the Fourth Proportional to 21,487.12, 32,229.96 and 8,836.44

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Solution

The fourth proportional to 21,487.12, 32,229.96 and 8,836.44 is: 13,254.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,487.12 : 32,229.96 = 8,836.44 : x
  2. Step 2: Convert to fraction form
    21,487.12/32,229.96 = 8,836.44/x
  3. Step 3: Cross multiply
    21,487.12x = 32,229.96 × 8,836.44
  4. Step 4: Simplify right side
    21,487.12x = 284,798,020.02
  5. Step 5: Solve for x
    x = 284,798,020.02/21,487.12
  6. Step 6: Final answer
    x = 13,254.36

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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.