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Finding the Fourth Proportional to 18,502.20, 27,704.70 and 14,581.80

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Solution

The fourth proportional to 18,502.20, 27,704.70 and 14,581.80 is: 21,834.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,502.20 : 27,704.70 = 14,581.80 : x
  2. Step 2: Convert to fraction form
    18,502.20/27,704.70 = 14,581.80/x
  3. Step 3: Cross multiply
    18,502.20x = 27,704.70 × 14,581.80
  4. Step 4: Simplify right side
    18,502.20x = 403,984,394.46
  5. Step 5: Solve for x
    x = 403,984,394.46/18,502.20
  6. Step 6: Final answer
    x = 21,834.40

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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.