Home / 39,744.36-54,844.56-21,838.50

Finding the Fourth Proportional to 39,744.36, 54,844.56 and 21,838.50

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Solution

The fourth proportional to 39,744.36, 54,844.56 and 21,838.50 is: 30,135.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,744.36 : 54,844.56 = 21,838.50 : x
  2. Step 2: Convert to fraction form
    39,744.36/54,844.56 = 21,838.50/x
  3. Step 3: Cross multiply
    39,744.36x = 54,844.56 × 21,838.50
  4. Step 4: Simplify right side
    39,744.36x = 1,197,722,923.56
  5. Step 5: Solve for x
    x = 1,197,722,923.56/39,744.36
  6. Step 6: Final answer
    x = 30,135.67

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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.