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Finding the Fourth Proportional to 22,657.15, 31,270.76 and 13,230.37

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Solution

The fourth proportional to 22,657.15, 31,270.76 and 13,230.37 is: 18,260.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,657.15 : 31,270.76 = 13,230.37 : x
  2. Step 2: Convert to fraction form
    22,657.15/31,270.76 = 13,230.37/x
  3. Step 3: Cross multiply
    22,657.15x = 31,270.76 × 13,230.37
  4. Step 4: Simplify right side
    22,657.15x = 413,723,724.98
  5. Step 5: Solve for x
    x = 413,723,724.98/22,657.15
  6. Step 6: Final answer
    x = 18,260.18

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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.