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Finding the Fourth Proportional to 22,302.99, 30,777.44 and 12,231.18

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Solution

The fourth proportional to 22,302.99, 30,777.44 and 12,231.18 is: 16,878.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,302.99 : 30,777.44 = 12,231.18 : x
  2. Step 2: Convert to fraction form
    22,302.99/30,777.44 = 12,231.18/x
  3. Step 3: Cross multiply
    22,302.99x = 30,777.44 × 12,231.18
  4. Step 4: Simplify right side
    22,302.99x = 376,444,347.42
  5. Step 5: Solve for x
    x = 376,444,347.42/22,302.99
  6. Step 6: Final answer
    x = 16,878.65

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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.