Home / 39,812.32-54,941.25-21,906.82

Finding the Fourth Proportional to 39,812.32, 54,941.25 and 21,906.82

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Solution

The fourth proportional to 39,812.32, 54,941.25 and 21,906.82 is: 30,231.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,812.32 : 54,941.25 = 21,906.82 : x
  2. Step 2: Convert to fraction form
    39,812.32/54,941.25 = 21,906.82/x
  3. Step 3: Cross multiply
    39,812.32x = 54,941.25 × 21,906.82
  4. Step 4: Simplify right side
    39,812.32x = 1,203,588,074.33
  5. Step 5: Solve for x
    x = 1,203,588,074.33/39,812.32
  6. Step 6: Final answer
    x = 30,231.55

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1.5x scale

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.