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Finding the Fourth Proportional to 18,592, 27,890.60 and 5,445.32

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Solution

The fourth proportional to 18,592, 27,890.60 and 5,445.32 is: 8,168.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,592 : 27,890.60 = 5,445.32 : x
  2. Step 2: Convert to fraction form
    18,592/27,890.60 = 5,445.32/x
  3. Step 3: Cross multiply
    18,592x = 27,890.60 × 5,445.32
  4. Step 4: Simplify right side
    18,592x = 151,873,241.99
  5. Step 5: Solve for x
    x = 151,873,241.99/18,592
  6. Step 6: Final answer
    x = 8,168.74

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Why These Related Problems?

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