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Finding the Fourth Proportional to 39,992.67, 60,026.67 and 20,285.37

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Solution

The fourth proportional to 39,992.67, 60,026.67 and 20,285.37 is: 30,447.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,992.67 : 60,026.67 = 20,285.37 : x
  2. Step 2: Convert to fraction form
    39,992.67/60,026.67 = 20,285.37/x
  3. Step 3: Cross multiply
    39,992.67x = 60,026.67 × 20,285.37
  4. Step 4: Simplify right side
    39,992.67x = 1,217,663,210.82
  5. Step 5: Solve for x
    x = 1,217,663,210.82/39,992.67
  6. Step 6: Final answer
    x = 30,447.16

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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.