Home / 39,981.48-59,961.74-11,893.98

Finding the Fourth Proportional to 39,981.48, 59,961.74 and 11,893.98

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Solution

The fourth proportional to 39,981.48, 59,961.74 and 11,893.98 is: 17,837.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,981.48 : 59,961.74 = 11,893.98 : x
  2. Step 2: Convert to fraction form
    39,981.48/59,961.74 = 11,893.98/x
  3. Step 3: Cross multiply
    39,981.48x = 59,961.74 × 11,893.98
  4. Step 4: Simplify right side
    39,981.48x = 713,183,736.33
  5. Step 5: Solve for x
    x = 713,183,736.33/39,981.48
  6. Step 6: Final answer
    x = 17,837.85

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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.