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Finding the Fourth Proportional to 36,321.71, 54,499.00 and 18,543.20

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Solution

The fourth proportional to 36,321.71, 54,499.00 and 18,543.20 is: 27,823.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,321.71 : 54,499.00 = 18,543.20 : x
  2. Step 2: Convert to fraction form
    36,321.71/54,499.00 = 18,543.20/x
  3. Step 3: Cross multiply
    36,321.71x = 54,499.00 × 18,543.20
  4. Step 4: Simplify right side
    36,321.71x = 1,010,585,537.95
  5. Step 5: Solve for x
    x = 1,010,585,537.95/36,321.71
  6. Step 6: Final answer
    x = 27,823.19

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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.