Home / 39,663.78-59,471.91-12,634.44

Finding the Fourth Proportional to 39,663.78, 59,471.91 and 12,634.44

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Solution

The fourth proportional to 39,663.78, 59,471.91 and 12,634.44 is: 18,944.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,663.78 : 59,471.91 = 12,634.44 : x
  2. Step 2: Convert to fraction form
    39,663.78/59,471.91 = 12,634.44/x
  3. Step 3: Cross multiply
    39,663.78x = 59,471.91 × 12,634.44
  4. Step 4: Simplify right side
    39,663.78x = 751,394,278.58
  5. Step 5: Solve for x
    x = 751,394,278.58/39,663.78
  6. Step 6: Final answer
    x = 18,944.09

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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.