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Finding the Fourth Proportional to 18,031.87, 27,047.90 and 4,884.35

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Solution

The fourth proportional to 18,031.87, 27,047.90 and 4,884.35 is: 7,326.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,031.87 : 27,047.90 = 4,884.35 : x
  2. Step 2: Convert to fraction form
    18,031.87/27,047.90 = 4,884.35/x
  3. Step 3: Cross multiply
    18,031.87x = 27,047.90 × 4,884.35
  4. Step 4: Simplify right side
    18,031.87x = 132,111,490.20
  5. Step 5: Solve for x
    x = 132,111,490.20/18,031.87
  6. Step 6: Final answer
    x = 7,326.56

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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.