Home / 19,171.08-28,731.11-10,845.90

Finding the Fourth Proportional to 19,171.08, 28,731.11 and 10,845.90

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Solution

The fourth proportional to 19,171.08, 28,731.11 and 10,845.90 is: 16,254.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,171.08 : 28,731.11 = 10,845.90 : x
  2. Step 2: Convert to fraction form
    19,171.08/28,731.11 = 10,845.90/x
  3. Step 3: Cross multiply
    19,171.08x = 28,731.11 × 10,845.90
  4. Step 4: Simplify right side
    19,171.08x = 311,614,691.72
  5. Step 5: Solve for x
    x = 311,614,691.72/19,171.08
  6. Step 6: Final answer
    x = 16,254.42

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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.