Home / 20,441.10-30,645.45-11,207.10

Finding the Fourth Proportional to 20,441.10, 30,645.45 and 11,207.10

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Solution

The fourth proportional to 20,441.10, 30,645.45 and 11,207.10 is: 16,801.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,441.10 : 30,645.45 = 11,207.10 : x
  2. Step 2: Convert to fraction form
    20,441.10/30,645.45 = 11,207.10/x
  3. Step 3: Cross multiply
    20,441.10x = 30,645.45 × 11,207.10
  4. Step 4: Simplify right side
    20,441.10x = 343,446,622.70
  5. Step 5: Solve for x
    x = 343,446,622.70/20,441.10
  6. Step 6: Final answer
    x = 16,801.77

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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.