Home / 25,453.28-38,198.42-19,221

Finding the Fourth Proportional to 25,453.28, 38,198.42 and 19,221

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Solution

The fourth proportional to 25,453.28, 38,198.42 and 19,221 is: 28,845.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,453.28 : 38,198.42 = 19,221 : x
  2. Step 2: Convert to fraction form
    25,453.28/38,198.42 = 19,221/x
  3. Step 3: Cross multiply
    25,453.28x = 38,198.42 × 19,221
  4. Step 4: Simplify right side
    25,453.28x = 734,211,830.82
  5. Step 5: Solve for x
    x = 734,211,830.82/25,453.28
  6. Step 6: Final answer
    x = 28,845.47

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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.