Home / 20,131.63-30,205.97-10,769.19

Finding the Fourth Proportional to 20,131.63, 30,205.97 and 10,769.19

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Solution

The fourth proportional to 20,131.63, 30,205.97 and 10,769.19 is: 16,158.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,131.63 : 30,205.97 = 10,769.19 : x
  2. Step 2: Convert to fraction form
    20,131.63/30,205.97 = 10,769.19/x
  3. Step 3: Cross multiply
    20,131.63x = 30,205.97 × 10,769.19
  4. Step 4: Simplify right side
    20,131.63x = 325,293,776.22
  5. Step 5: Solve for x
    x = 325,293,776.22/20,131.63
  6. Step 6: Final answer
    x = 16,158.35

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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.