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Finding the Fourth Proportional to 18,027.26, 27,031.14 and 5,543.54

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Solution

The fourth proportional to 18,027.26, 27,031.14 and 5,543.54 is: 8,312.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,027.26 : 27,031.14 = 5,543.54 : x
  2. Step 2: Convert to fraction form
    18,027.26/27,031.14 = 5,543.54/x
  3. Step 3: Cross multiply
    18,027.26x = 27,031.14 × 5,543.54
  4. Step 4: Simplify right side
    18,027.26x = 149,848,205.84
  5. Step 5: Solve for x
    x = 149,848,205.84/18,027.26
  6. Step 6: Final answer
    x = 8,312.31

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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.