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Finding the Fourth Proportional to 39,227.72, 54,134.57 and 21,322.72

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Solution

The fourth proportional to 39,227.72, 54,134.57 and 21,322.72 is: 29,425.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,227.72 : 54,134.57 = 21,322.72 : x
  2. Step 2: Convert to fraction form
    39,227.72/54,134.57 = 21,322.72/x
  3. Step 3: Cross multiply
    39,227.72x = 54,134.57 × 21,322.72
  4. Step 4: Simplify right side
    39,227.72x = 1,154,296,196.40
  5. Step 5: Solve for x
    x = 1,154,296,196.40/39,227.72
  6. Step 6: Final answer
    x = 29,425.53

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