Home / 21,751.26-30,015.82-12,677.48

Finding the Fourth Proportional to 21,751.26, 30,015.82 and 12,677.48

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Solution

The fourth proportional to 21,751.26, 30,015.82 and 12,677.48 is: 17,494.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,751.26 : 30,015.82 = 12,677.48 : x
  2. Step 2: Convert to fraction form
    21,751.26/30,015.82 = 12,677.48/x
  3. Step 3: Cross multiply
    21,751.26x = 30,015.82 × 12,677.48
  4. Step 4: Simplify right side
    21,751.26x = 380,524,957.73
  5. Step 5: Solve for x
    x = 380,524,957.73/21,751.26
  6. Step 6: Final answer
    x = 17,494.39

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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.