Home / 20,649.46-28,496.78-11,696.82

Finding the Fourth Proportional to 20,649.46, 28,496.78 and 11,696.82

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Solution

The fourth proportional to 20,649.46, 28,496.78 and 11,696.82 is: 16,141.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,649.46 : 28,496.78 = 11,696.82 : x
  2. Step 2: Convert to fraction form
    20,649.46/28,496.78 = 11,696.82/x
  3. Step 3: Cross multiply
    20,649.46x = 28,496.78 × 11,696.82
  4. Step 4: Simplify right side
    20,649.46x = 333,321,706.24
  5. Step 5: Solve for x
    x = 333,321,706.24/20,649.46
  6. Step 6: Final answer
    x = 16,141.91

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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.