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Finding the Fourth Proportional to 22,397.72, 33,617.37 and 11,312.20

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Solution

The fourth proportional to 22,397.72, 33,617.37 and 11,312.20 is: 16,978.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,397.72 : 33,617.37 = 11,312.20 : x
  2. Step 2: Convert to fraction form
    22,397.72/33,617.37 = 11,312.20/x
  3. Step 3: Cross multiply
    22,397.72x = 33,617.37 × 11,312.20
  4. Step 4: Simplify right side
    22,397.72x = 380,286,244.63
  5. Step 5: Solve for x
    x = 380,286,244.63/22,397.72
  6. Step 6: Final answer
    x = 16,978.79

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.