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Finding the Fourth Proportional to 20,654.33, 28,504.07 and 11,703.58

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Solution

The fourth proportional to 20,654.33, 28,504.07 and 11,703.58 is: 16,151.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,654.33 : 28,504.07 = 11,703.58 : x
  2. Step 2: Convert to fraction form
    20,654.33/28,504.07 = 11,703.58/x
  3. Step 3: Cross multiply
    20,654.33x = 28,504.07 × 11,703.58
  4. Step 4: Simplify right side
    20,654.33x = 333,599,663.57
  5. Step 5: Solve for x
    x = 333,599,663.57/20,654.33
  6. Step 6: Final answer
    x = 16,151.56

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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.