Home / 39,813.62-54,941.63-21,908.61

Finding the Fourth Proportional to 39,813.62, 54,941.63 and 21,908.61

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Solution

The fourth proportional to 39,813.62, 54,941.63 and 21,908.61 is: 30,233.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,813.62 : 54,941.63 = 21,908.61 : x
  2. Step 2: Convert to fraction form
    39,813.62/54,941.63 = 21,908.61/x
  3. Step 3: Cross multiply
    39,813.62x = 54,941.63 × 21,908.61
  4. Step 4: Simplify right side
    39,813.62x = 1,203,694,634.89
  5. Step 5: Solve for x
    x = 1,203,694,634.89/39,813.62
  6. Step 6: Final answer
    x = 30,233.24

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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.