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Finding the Fourth Proportional to 36,027.52, 54,011.04 and 12,669.28

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Solution

The fourth proportional to 36,027.52, 54,011.04 and 12,669.28 is: 18,993.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,027.52 : 54,011.04 = 12,669.28 : x
  2. Step 2: Convert to fraction form
    36,027.52/54,011.04 = 12,669.28/x
  3. Step 3: Cross multiply
    36,027.52x = 54,011.04 × 12,669.28
  4. Step 4: Simplify right side
    36,027.52x = 684,280,988.85
  5. Step 5: Solve for x
    x = 684,280,988.85/36,027.52
  6. Step 6: Final answer
    x = 18,993.29

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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.