Home / 39,919.54-55,087.70-22,015.30

Finding the Fourth Proportional to 39,919.54, 55,087.70 and 22,015.30

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Solution

The fourth proportional to 39,919.54, 55,087.70 and 22,015.30 is: 30,380.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,919.54 : 55,087.70 = 22,015.30 : x
  2. Step 2: Convert to fraction form
    39,919.54/55,087.70 = 22,015.30/x
  3. Step 3: Cross multiply
    39,919.54x = 55,087.70 × 22,015.30
  4. Step 4: Simplify right side
    39,919.54x = 1,212,772,241.81
  5. Step 5: Solve for x
    x = 1,212,772,241.81/39,919.54
  6. Step 6: Final answer
    x = 30,380.42

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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.