Home / 38,635.71-57,961.86-11,981.13

Finding the Fourth Proportional to 38,635.71, 57,961.86 and 11,981.13

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Solution

The fourth proportional to 38,635.71, 57,961.86 and 11,981.13 is: 17,974.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,635.71 : 57,961.86 = 11,981.13 : x
  2. Step 2: Convert to fraction form
    38,635.71/57,961.86 = 11,981.13/x
  3. Step 3: Cross multiply
    38,635.71x = 57,961.86 × 11,981.13
  4. Step 4: Simplify right side
    38,635.71x = 694,448,579.70
  5. Step 5: Solve for x
    x = 694,448,579.70/38,635.71
  6. Step 6: Final answer
    x = 17,974.27

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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.