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Finding the Fourth Proportional to 22,563.44, 31,137.34 and 12,999.82

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Solution

The fourth proportional to 22,563.44, 31,137.34 and 12,999.82 is: 17,939.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,563.44 : 31,137.34 = 12,999.82 : x
  2. Step 2: Convert to fraction form
    22,563.44/31,137.34 = 12,999.82/x
  3. Step 3: Cross multiply
    22,563.44x = 31,137.34 × 12,999.82
  4. Step 4: Simplify right side
    22,563.44x = 404,779,704.94
  5. Step 5: Solve for x
    x = 404,779,704.94/22,563.44
  6. Step 6: Final answer
    x = 17,939.63

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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.