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Finding the Fourth Proportional to 18,063.88, 27,091.02 and 15,143.56

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Solution

The fourth proportional to 18,063.88, 27,091.02 and 15,143.56 is: 22,711.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,063.88 : 27,091.02 = 15,143.56 : x
  2. Step 2: Convert to fraction form
    18,063.88/27,091.02 = 15,143.56/x
  3. Step 3: Cross multiply
    18,063.88x = 27,091.02 × 15,143.56
  4. Step 4: Simplify right side
    18,063.88x = 410,254,486.83
  5. Step 5: Solve for x
    x = 410,254,486.83/18,063.88
  6. Step 6: Final answer
    x = 22,711.32

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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.