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Finding the Fourth Proportional to 21,049.48, 29,048.14 and 11,618.05

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Solution

The fourth proportional to 21,049.48, 29,048.14 and 11,618.05 is: 16,032.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,049.48 : 29,048.14 = 11,618.05 : x
  2. Step 2: Convert to fraction form
    21,049.48/29,048.14 = 11,618.05/x
  3. Step 3: Cross multiply
    21,049.48x = 29,048.14 × 11,618.05
  4. Step 4: Simplify right side
    21,049.48x = 337,482,742.93
  5. Step 5: Solve for x
    x = 337,482,742.93/21,049.48
  6. Step 6: Final answer
    x = 16,032.83

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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.