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Finding the Fourth Proportional to 22,299.17, 30,773.79 and 12,740.63

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Solution

The fourth proportional to 22,299.17, 30,773.79 and 12,740.63 is: 17,582.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,299.17 : 30,773.79 = 12,740.63 : x
  2. Step 2: Convert to fraction form
    22,299.17/30,773.79 = 12,740.63/x
  3. Step 3: Cross multiply
    22,299.17x = 30,773.79 × 12,740.63
  4. Step 4: Simplify right side
    22,299.17x = 392,077,318.22
  5. Step 5: Solve for x
    x = 392,077,318.22/22,299.17
  6. Step 6: Final answer
    x = 17,582.60

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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.