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Finding the Fourth Proportional to 39,092, 58,647.74 and 11,390

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Solution

The fourth proportional to 39,092, 58,647.74 and 11,390 is: 17,087.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,092 : 58,647.74 = 11,390 : x
  2. Step 2: Convert to fraction form
    39,092/58,647.74 = 11,390/x
  3. Step 3: Cross multiply
    39,092x = 58,647.74 × 11,390
  4. Step 4: Simplify right side
    39,092x = 667,997,758.60
  5. Step 5: Solve for x
    x = 667,997,758.60/39,092
  6. Step 6: Final answer
    x = 17,087.84

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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.