Home / 20,725.33-28,599.94-11,771.66

Finding the Fourth Proportional to 20,725.33, 28,599.94 and 11,771.66

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Solution

The fourth proportional to 20,725.33, 28,599.94 and 11,771.66 is: 16,244.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,725.33 : 28,599.94 = 11,771.66 : x
  2. Step 2: Convert to fraction form
    20,725.33/28,599.94 = 11,771.66/x
  3. Step 3: Cross multiply
    20,725.33x = 28,599.94 × 11,771.66
  4. Step 4: Simplify right side
    20,725.33x = 336,668,710.84
  5. Step 5: Solve for x
    x = 336,668,710.84/20,725.33
  6. Step 6: Final answer
    x = 16,244.31

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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.