Home / 19,906.76-27,441.88-12,735.90

Finding the Fourth Proportional to 19,906.76, 27,441.88 and 12,735.90

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Solution

The fourth proportional to 19,906.76, 27,441.88 and 12,735.90 is: 17,556.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,906.76 : 27,441.88 = 12,735.90 : x
  2. Step 2: Convert to fraction form
    19,906.76/27,441.88 = 12,735.90/x
  3. Step 3: Cross multiply
    19,906.76x = 27,441.88 × 12,735.90
  4. Step 4: Simplify right side
    19,906.76x = 349,497,039.49
  5. Step 5: Solve for x
    x = 349,497,039.49/19,906.76
  6. Step 6: Final answer
    x = 17,556.70

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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.