Home / 20,257.43-27,954.52-12,707.82

Finding the Fourth Proportional to 20,257.43, 27,954.52 and 12,707.82

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Solution

The fourth proportional to 20,257.43, 27,954.52 and 12,707.82 is: 17,536.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,257.43 : 27,954.52 = 12,707.82 : x
  2. Step 2: Convert to fraction form
    20,257.43/27,954.52 = 12,707.82/x
  3. Step 3: Cross multiply
    20,257.43x = 27,954.52 × 12,707.82
  4. Step 4: Simplify right side
    20,257.43x = 355,240,976.58
  5. Step 5: Solve for x
    x = 355,240,976.58/20,257.43
  6. Step 6: Final answer
    x = 17,536.33

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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.