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Finding the Fourth Proportional to 18,296.57, 27,448.67 and 10,402.72

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Solution

The fourth proportional to 18,296.57, 27,448.67 and 10,402.72 is: 15,606.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,296.57 : 27,448.67 = 10,402.72 : x
  2. Step 2: Convert to fraction form
    18,296.57/27,448.67 = 10,402.72/x
  3. Step 3: Cross multiply
    18,296.57x = 27,448.67 × 10,402.72
  4. Step 4: Simplify right side
    18,296.57x = 285,540,785.77
  5. Step 5: Solve for x
    x = 285,540,785.77/18,296.57
  6. Step 6: Final answer
    x = 15,606.24

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.