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Finding the Fourth Proportional to 55,286.88, 82,930.31 and 18,350.88

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Solution

The fourth proportional to 55,286.88, 82,930.31 and 18,350.88 is: 27,526.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,286.88 : 82,930.31 = 18,350.88 : x
  2. Step 2: Convert to fraction form
    55,286.88/82,930.31 = 18,350.88/x
  3. Step 3: Cross multiply
    55,286.88x = 82,930.31 × 18,350.88
  4. Step 4: Simplify right side
    55,286.88x = 1,521,844,167.17
  5. Step 5: Solve for x
    x = 1,521,844,167.17/55,286.88
  6. Step 6: Final answer
    x = 27,526.32

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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.