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Finding the Fourth Proportional to 18,023.31, 27,028.08 and 8,657.46

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Solution

The fourth proportional to 18,023.31, 27,028.08 and 8,657.46 is: 12,982.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,023.31 : 27,028.08 = 8,657.46 : x
  2. Step 2: Convert to fraction form
    18,023.31/27,028.08 = 8,657.46/x
  3. Step 3: Cross multiply
    18,023.31x = 27,028.08 × 8,657.46
  4. Step 4: Simplify right side
    18,023.31x = 233,994,521.48
  5. Step 5: Solve for x
    x = 233,994,521.48/18,023.31
  6. Step 6: Final answer
    x = 12,982.88

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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.