Home / 19,664.74-27,135.30-11,705.41

Finding the Fourth Proportional to 19,664.74, 27,135.30 and 11,705.41

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Solution

The fourth proportional to 19,664.74, 27,135.30 and 11,705.41 is: 16,152.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,664.74 : 27,135.30 = 11,705.41 : x
  2. Step 2: Convert to fraction form
    19,664.74/27,135.30 = 11,705.41/x
  3. Step 3: Cross multiply
    19,664.74x = 27,135.30 × 11,705.41
  4. Step 4: Simplify right side
    19,664.74x = 317,629,811.97
  5. Step 5: Solve for x
    x = 317,629,811.97/19,664.74
  6. Step 6: Final answer
    x = 16,152.25

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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.