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Finding the Fourth Proportional to 22,496.96, 31,045.30 and 12,287.66

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Solution

The fourth proportional to 22,496.96, 31,045.30 and 12,287.66 is: 16,956.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,496.96 : 31,045.30 = 12,287.66 : x
  2. Step 2: Convert to fraction form
    22,496.96/31,045.30 = 12,287.66/x
  3. Step 3: Cross multiply
    22,496.96x = 31,045.30 × 12,287.66
  4. Step 4: Simplify right side
    22,496.96x = 381,474,091.00
  5. Step 5: Solve for x
    x = 381,474,091.00/22,496.96
  6. Step 6: Final answer
    x = 16,956.70

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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.