Home / 21,742.67-29,991.62-14,375.57

Finding the Fourth Proportional to 21,742.67, 29,991.62 and 14,375.57

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Solution

The fourth proportional to 21,742.67, 29,991.62 and 14,375.57 is: 19,829.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,742.67 : 29,991.62 = 14,375.57 : x
  2. Step 2: Convert to fraction form
    21,742.67/29,991.62 = 14,375.57/x
  3. Step 3: Cross multiply
    21,742.67x = 29,991.62 × 14,375.57
  4. Step 4: Simplify right side
    21,742.67x = 431,146,635.82
  5. Step 5: Solve for x
    x = 431,146,635.82/21,742.67
  6. Step 6: Final answer
    x = 19,829.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.