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Finding the Fourth Proportional to 22,635.75, 31,238.70 and 13,077.39

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Solution

The fourth proportional to 22,635.75, 31,238.70 and 13,077.39 is: 18,047.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,635.75 : 31,238.70 = 13,077.39 : x
  2. Step 2: Convert to fraction form
    22,635.75/31,238.70 = 13,077.39/x
  3. Step 3: Cross multiply
    22,635.75x = 31,238.70 × 13,077.39
  4. Step 4: Simplify right side
    22,635.75x = 408,520,731.10
  5. Step 5: Solve for x
    x = 408,520,731.10/22,635.75
  6. Step 6: Final answer
    x = 18,047.59

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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.