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Finding the Fourth Proportional to 27,182.40, 40,720.49 and 18,728.96

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Solution

The fourth proportional to 27,182.40, 40,720.49 and 18,728.96 is: 28,056.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,182.40 : 40,720.49 = 18,728.96 : x
  2. Step 2: Convert to fraction form
    27,182.40/40,720.49 = 18,728.96/x
  3. Step 3: Cross multiply
    27,182.40x = 40,720.49 × 18,728.96
  4. Step 4: Simplify right side
    27,182.40x = 762,652,131.14
  5. Step 5: Solve for x
    x = 762,652,131.14/27,182.40
  6. Step 6: Final answer
    x = 28,056.84

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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.