Home / 19,105.46-28,616.70-11,687.41

Finding the Fourth Proportional to 19,105.46, 28,616.70 and 11,687.41

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Solution

The fourth proportional to 19,105.46, 28,616.70 and 11,687.41 is: 17,505.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,105.46 : 28,616.70 = 11,687.41 : x
  2. Step 2: Convert to fraction form
    19,105.46/28,616.70 = 11,687.41/x
  3. Step 3: Cross multiply
    19,105.46x = 28,616.70 × 11,687.41
  4. Step 4: Simplify right side
    19,105.46x = 334,454,962.66
  5. Step 5: Solve for x
    x = 334,454,962.66/19,105.46
  6. Step 6: Final answer
    x = 17,505.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.