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Finding the Fourth Proportional to 19,854.77, 27,399.58 and 10,902.27

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Solution

The fourth proportional to 19,854.77, 27,399.58 and 10,902.27 is: 15,045.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,854.77 : 27,399.58 = 10,902.27 : x
  2. Step 2: Convert to fraction form
    19,854.77/27,399.58 = 10,902.27/x
  3. Step 3: Cross multiply
    19,854.77x = 27,399.58 × 10,902.27
  4. Step 4: Simplify right side
    19,854.77x = 298,717,564.54
  5. Step 5: Solve for x
    x = 298,717,564.54/19,854.77
  6. Step 6: Final answer
    x = 15,045.13

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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.