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Finding the Fourth Proportional to 29,166.40, 43,771.20 and 11,648.80

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Solution

The fourth proportional to 29,166.40, 43,771.20 and 11,648.80 is: 17,481.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,166.40 : 43,771.20 = 11,648.80 : x
  2. Step 2: Convert to fraction form
    29,166.40/43,771.20 = 11,648.80/x
  3. Step 3: Cross multiply
    29,166.40x = 43,771.20 × 11,648.80
  4. Step 4: Simplify right side
    29,166.40x = 509,881,954.56
  5. Step 5: Solve for x
    x = 509,881,954.56/29,166.40
  6. Step 6: Final answer
    x = 17,481.83

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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.