Home / 39,717.25-54,810.26-21,811.93

Finding the Fourth Proportional to 39,717.25, 54,810.26 and 21,811.93

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Solution

The fourth proportional to 39,717.25, 54,810.26 and 21,811.93 is: 30,100.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,717.25 : 54,810.26 = 21,811.93 : x
  2. Step 2: Convert to fraction form
    39,717.25/54,810.26 = 21,811.93/x
  3. Step 3: Cross multiply
    39,717.25x = 54,810.26 × 21,811.93
  4. Step 4: Simplify right side
    39,717.25x = 1,195,517,554.40
  5. Step 5: Solve for x
    x = 1,195,517,554.40/39,717.25
  6. Step 6: Final answer
    x = 30,100.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.