Home / 19,175.05-28,757.31-12,144.52

Finding the Fourth Proportional to 19,175.05, 28,757.31 and 12,144.52

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Solution

The fourth proportional to 19,175.05, 28,757.31 and 12,144.52 is: 18,213.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,175.05 : 28,757.31 = 12,144.52 : x
  2. Step 2: Convert to fraction form
    19,175.05/28,757.31 = 12,144.52/x
  3. Step 3: Cross multiply
    19,175.05x = 28,757.31 × 12,144.52
  4. Step 4: Simplify right side
    19,175.05x = 349,243,726.44
  5. Step 5: Solve for x
    x = 349,243,726.44/19,175.05
  6. Step 6: Final answer
    x = 18,213.45

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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.