Home / 19,057.30-28,611.60-11,167.90

Finding the Fourth Proportional to 19,057.30, 28,611.60 and 11,167.90

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Solution

The fourth proportional to 19,057.30, 28,611.60 and 11,167.90 is: 16,766.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,057.30 : 28,611.60 = 11,167.90 : x
  2. Step 2: Convert to fraction form
    19,057.30/28,611.60 = 11,167.90/x
  3. Step 3: Cross multiply
    19,057.30x = 28,611.60 × 11,167.90
  4. Step 4: Simplify right side
    19,057.30x = 319,531,487.64
  5. Step 5: Solve for x
    x = 319,531,487.64/19,057.30
  6. Step 6: Final answer
    x = 16,766.88

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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.