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Finding the Fourth Proportional to 27,325.52, 40,981.80 and 12,525.20

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Solution

The fourth proportional to 27,325.52, 40,981.80 and 12,525.20 is: 18,784.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,325.52 : 40,981.80 = 12,525.20 : x
  2. Step 2: Convert to fraction form
    27,325.52/40,981.80 = 12,525.20/x
  3. Step 3: Cross multiply
    27,325.52x = 40,981.80 × 12,525.20
  4. Step 4: Simplify right side
    27,325.52x = 513,305,241.36
  5. Step 5: Solve for x
    x = 513,305,241.36/27,325.52
  6. Step 6: Final answer
    x = 18,784.83

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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.