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Finding the Fourth Proportional to 22,704.40, 31,332.67 and 12,495.72

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Solution

The fourth proportional to 22,704.40, 31,332.67 and 12,495.72 is: 17,244.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,704.40 : 31,332.67 = 12,495.72 : x
  2. Step 2: Convert to fraction form
    22,704.40/31,332.67 = 12,495.72/x
  3. Step 3: Cross multiply
    22,704.40x = 31,332.67 × 12,495.72
  4. Step 4: Simplify right side
    22,704.40x = 391,524,251.47
  5. Step 5: Solve for x
    x = 391,524,251.47/22,704.40
  6. Step 6: Final answer
    x = 17,244.42

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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.