Home / 20,949.52-28,908.63-12,334.34

Finding the Fourth Proportional to 20,949.52, 28,908.63 and 12,334.34

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Solution

The fourth proportional to 20,949.52, 28,908.63 and 12,334.34 is: 17,020.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,949.52 : 28,908.63 = 12,334.34 : x
  2. Step 2: Convert to fraction form
    20,949.52/28,908.63 = 12,334.34/x
  3. Step 3: Cross multiply
    20,949.52x = 28,908.63 × 12,334.34
  4. Step 4: Simplify right side
    20,949.52x = 356,568,809.68
  5. Step 5: Solve for x
    x = 356,568,809.68/20,949.52
  6. Step 6: Final answer
    x = 17,020.38

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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.