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Finding the Fourth Proportional to 18,027.02, 27,040.50 and 13,127.84

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Solution

The fourth proportional to 18,027.02, 27,040.50 and 13,127.84 is: 19,691.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,027.02 : 27,040.50 = 13,127.84 : x
  2. Step 2: Convert to fraction form
    18,027.02/27,040.50 = 13,127.84/x
  3. Step 3: Cross multiply
    18,027.02x = 27,040.50 × 13,127.84
  4. Step 4: Simplify right side
    18,027.02x = 354,983,357.52
  5. Step 5: Solve for x
    x = 354,983,357.52/18,027.02
  6. Step 6: Final answer
    x = 19,691.74

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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.