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Finding the Fourth Proportional to 29,678.89, 40,955.60 and 16,249.90

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Solution

The fourth proportional to 29,678.89, 40,955.60 and 16,249.90 is: 22,424.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,678.89 : 40,955.60 = 16,249.90 : x
  2. Step 2: Convert to fraction form
    29,678.89/40,955.60 = 16,249.90/x
  3. Step 3: Cross multiply
    29,678.89x = 40,955.60 × 16,249.90
  4. Step 4: Simplify right side
    29,678.89x = 665,524,118.41
  5. Step 5: Solve for x
    x = 665,524,118.41/29,678.89
  6. Step 6: Final answer
    x = 22,424.16

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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.