Home / 18,543.73-27,767.60-16,857.99

Finding the Fourth Proportional to 18,543.73, 27,767.60 and 16,857.99

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Solution

The fourth proportional to 18,543.73, 27,767.60 and 16,857.99 is: 25,243.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,543.73 : 27,767.60 = 16,857.99 : x
  2. Step 2: Convert to fraction form
    18,543.73/27,767.60 = 16,857.99/x
  3. Step 3: Cross multiply
    18,543.73x = 27,767.60 × 16,857.99
  4. Step 4: Simplify right side
    18,543.73x = 468,105,923.12
  5. Step 5: Solve for x
    x = 468,105,923.12/18,543.73
  6. Step 6: Final answer
    x = 25,243.35

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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.