Home / 20,206.10-30,305.10-9,676.10

Finding the Fourth Proportional to 20,206.10, 30,305.10 and 9,676.10

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Solution

The fourth proportional to 20,206.10, 30,305.10 and 9,676.10 is: 14,512.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,206.10 : 30,305.10 = 9,676.10 : x
  2. Step 2: Convert to fraction form
    20,206.10/30,305.10 = 9,676.10/x
  3. Step 3: Cross multiply
    20,206.10x = 30,305.10 × 9,676.10
  4. Step 4: Simplify right side
    20,206.10x = 293,235,178.11
  5. Step 5: Solve for x
    x = 293,235,178.11/20,206.10
  6. Step 6: Final answer
    x = 14,512.21

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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.