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Finding the Fourth Proportional to 18,588, 27,891.56 and 12,352.32

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Solution

The fourth proportional to 18,588, 27,891.56 and 12,352.32 is: 18,534.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,588 : 27,891.56 = 12,352.32 : x
  2. Step 2: Convert to fraction form
    18,588/27,891.56 = 12,352.32/x
  3. Step 3: Cross multiply
    18,588x = 27,891.56 × 12,352.32
  4. Step 4: Simplify right side
    18,588x = 344,525,474.42
  5. Step 5: Solve for x
    x = 344,525,474.42/18,588
  6. Step 6: Final answer
    x = 18,534.83

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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.