Home / 22,428.72-30,936.24-12,997.44

Finding the Fourth Proportional to 22,428.72, 30,936.24 and 12,997.44

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Solution

The fourth proportional to 22,428.72, 30,936.24 and 12,997.44 is: 17,927.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,428.72 : 30,936.24 = 12,997.44 : x
  2. Step 2: Convert to fraction form
    22,428.72/30,936.24 = 12,997.44/x
  3. Step 3: Cross multiply
    22,428.72x = 30,936.24 × 12,997.44
  4. Step 4: Simplify right side
    22,428.72x = 402,091,923.23
  5. Step 5: Solve for x
    x = 402,091,923.23/22,428.72
  6. Step 6: Final answer
    x = 17,927.55

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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.