Home / 21,517.68-32,285.64-19,795.44

Finding the Fourth Proportional to 21,517.68, 32,285.64 and 19,795.44

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Solution

The fourth proportional to 21,517.68, 32,285.64 and 19,795.44 is: 29,701.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,517.68 : 32,285.64 = 19,795.44 : x
  2. Step 2: Convert to fraction form
    21,517.68/32,285.64 = 19,795.44/x
  3. Step 3: Cross multiply
    21,517.68x = 32,285.64 × 19,795.44
  4. Step 4: Simplify right side
    21,517.68x = 639,108,449.48
  5. Step 5: Solve for x
    x = 639,108,449.48/21,517.68
  6. Step 6: Final answer
    x = 29,701.55

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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.