Home / 19,906.35-27,470.78-10,954.50

Finding the Fourth Proportional to 19,906.35, 27,470.78 and 10,954.50

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Solution

The fourth proportional to 19,906.35, 27,470.78 and 10,954.50 is: 15,117.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,906.35 : 27,470.78 = 10,954.50 : x
  2. Step 2: Convert to fraction form
    19,906.35/27,470.78 = 10,954.50/x
  3. Step 3: Cross multiply
    19,906.35x = 27,470.78 × 10,954.50
  4. Step 4: Simplify right side
    19,906.35x = 300,928,659.51
  5. Step 5: Solve for x
    x = 300,928,659.51/19,906.35
  6. Step 6: Final answer
    x = 15,117.22

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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.