Home / 19,950.78-27,516.87-15,250.62

Finding the Fourth Proportional to 19,950.78, 27,516.87 and 15,250.62

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Solution

The fourth proportional to 19,950.78, 27,516.87 and 15,250.62 is: 21,034.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,950.78 : 27,516.87 = 15,250.62 : x
  2. Step 2: Convert to fraction form
    19,950.78/27,516.87 = 15,250.62/x
  3. Step 3: Cross multiply
    19,950.78x = 27,516.87 × 15,250.62
  4. Step 4: Simplify right side
    19,950.78x = 419,649,327.96
  5. Step 5: Solve for x
    x = 419,649,327.96/19,950.78
  6. Step 6: Final answer
    x = 21,034.23

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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.