Home / 20,513.23-30,754.78-8,022.35

Finding the Fourth Proportional to 20,513.23, 30,754.78 and 8,022.35

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Solution

The fourth proportional to 20,513.23, 30,754.78 and 8,022.35 is: 12,027.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,513.23 : 30,754.78 = 8,022.35 : x
  2. Step 2: Convert to fraction form
    20,513.23/30,754.78 = 8,022.35/x
  3. Step 3: Cross multiply
    20,513.23x = 30,754.78 × 8,022.35
  4. Step 4: Simplify right side
    20,513.23x = 246,725,609.33
  5. Step 5: Solve for x
    x = 246,725,609.33/20,513.23
  6. Step 6: Final answer
    x = 12,027.63

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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.