Home / 20,252.82-30,378.15-7,106.52

Finding the Fourth Proportional to 20,252.82, 30,378.15 and 7,106.52

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Solution

The fourth proportional to 20,252.82, 30,378.15 and 7,106.52 is: 10,659.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,252.82 : 30,378.15 = 7,106.52 : x
  2. Step 2: Convert to fraction form
    20,252.82/30,378.15 = 7,106.52/x
  3. Step 3: Cross multiply
    20,252.82x = 30,378.15 × 7,106.52
  4. Step 4: Simplify right side
    20,252.82x = 215,882,930.54
  5. Step 5: Solve for x
    x = 215,882,930.54/20,252.82
  6. Step 6: Final answer
    x = 10,659.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.