Home / 21,684.88-32,493.40-16,766.64

Finding the Fourth Proportional to 21,684.88, 32,493.40 and 16,766.64

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Solution

The fourth proportional to 21,684.88, 32,493.40 and 16,766.64 is: 25,123.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,684.88 : 32,493.40 = 16,766.64 : x
  2. Step 2: Convert to fraction form
    21,684.88/32,493.40 = 16,766.64/x
  3. Step 3: Cross multiply
    21,684.88x = 32,493.40 × 16,766.64
  4. Step 4: Simplify right side
    21,684.88x = 544,805,140.18
  5. Step 5: Solve for x
    x = 544,805,140.18/21,684.88
  6. Step 6: Final answer
    x = 25,123.73

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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.