Home / 39,680.26-54,759.17-21,776.42

Finding the Fourth Proportional to 39,680.26, 54,759.17 and 21,776.42

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Solution

The fourth proportional to 39,680.26, 54,759.17 and 21,776.42 is: 30,051.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,680.26 : 54,759.17 = 21,776.42 : x
  2. Step 2: Convert to fraction form
    39,680.26/54,759.17 = 21,776.42/x
  3. Step 3: Cross multiply
    39,680.26x = 54,759.17 × 21,776.42
  4. Step 4: Simplify right side
    39,680.26x = 1,192,458,684.77
  5. Step 5: Solve for x
    x = 1,192,458,684.77/39,680.26
  6. Step 6: Final answer
    x = 30,051.69

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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.