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Finding the Fourth Proportional to 38,365.52, 57,548.28 and 21,938

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Solution

The fourth proportional to 38,365.52, 57,548.28 and 21,938 is: 32,907

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,365.52 : 57,548.28 = 21,938 : x
  2. Step 2: Convert to fraction form
    38,365.52/57,548.28 = 21,938/x
  3. Step 3: Cross multiply
    38,365.52x = 57,548.28 × 21,938
  4. Step 4: Simplify right side
    38,365.52x = 1,262,494,166.64
  5. Step 5: Solve for x
    x = 1,262,494,166.64/38,365.52
  6. Step 6: Final answer
    x = 32,907

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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.