Home / 19,761.04-27,257.71-12,100.77

Finding the Fourth Proportional to 19,761.04, 27,257.71 and 12,100.77

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Solution

The fourth proportional to 19,761.04, 27,257.71 and 12,100.77 is: 16,691.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,761.04 : 27,257.71 = 12,100.77 : x
  2. Step 2: Convert to fraction form
    19,761.04/27,257.71 = 12,100.77/x
  3. Step 3: Cross multiply
    19,761.04x = 27,257.71 × 12,100.77
  4. Step 4: Simplify right side
    19,761.04x = 329,839,279.44
  5. Step 5: Solve for x
    x = 329,839,279.44/19,761.04
  6. Step 6: Final answer
    x = 16,691.39

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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.