Home / 20,680.92-28,537.92-11,725.56

Finding the Fourth Proportional to 20,680.92, 28,537.92 and 11,725.56

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Solution

The fourth proportional to 20,680.92, 28,537.92 and 11,725.56 is: 16,180.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,680.92 : 28,537.92 = 11,725.56 : x
  2. Step 2: Convert to fraction form
    20,680.92/28,537.92 = 11,725.56/x
  3. Step 3: Cross multiply
    20,680.92x = 28,537.92 × 11,725.56
  4. Step 4: Simplify right side
    20,680.92x = 334,623,093.24
  5. Step 5: Solve for x
    x = 334,623,093.24/20,680.92
  6. Step 6: Final answer
    x = 16,180.28

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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.