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Finding the Fourth Proportional to 18,218.92, 27,359.10 and 17,283.64

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Solution

The fourth proportional to 18,218.92, 27,359.10 and 17,283.64 is: 25,954.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,218.92 : 27,359.10 = 17,283.64 : x
  2. Step 2: Convert to fraction form
    18,218.92/27,359.10 = 17,283.64/x
  3. Step 3: Cross multiply
    18,218.92x = 27,359.10 × 17,283.64
  4. Step 4: Simplify right side
    18,218.92x = 472,864,835.12
  5. Step 5: Solve for x
    x = 472,864,835.12/18,218.92
  6. Step 6: Final answer
    x = 25,954.60

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1.5x scale

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.