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Finding the Fourth Proportional to 27,436, 37,855.87 and 16,686.48

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Solution

The fourth proportional to 27,436, 37,855.87 and 16,686.48 is: 23,023.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,436 : 37,855.87 = 16,686.48 : x
  2. Step 2: Convert to fraction form
    27,436/37,855.87 = 16,686.48/x
  3. Step 3: Cross multiply
    27,436x = 37,855.87 × 16,686.48
  4. Step 4: Simplify right side
    27,436x = 631,681,217.64
  5. Step 5: Solve for x
    x = 631,681,217.64/27,436
  6. Step 6: Final answer
    x = 23,023.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.