Home / 20,435.22-30,652.20-5,645.04

Finding the Fourth Proportional to 20,435.22, 30,652.20 and 5,645.04

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Solution

The fourth proportional to 20,435.22, 30,652.20 and 5,645.04 is: 8,467.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,435.22 : 30,652.20 = 5,645.04 : x
  2. Step 2: Convert to fraction form
    20,435.22/30,652.20 = 5,645.04/x
  3. Step 3: Cross multiply
    20,435.22x = 30,652.20 × 5,645.04
  4. Step 4: Simplify right side
    20,435.22x = 173,032,895.09
  5. Step 5: Solve for x
    x = 173,032,895.09/20,435.22
  6. Step 6: Final answer
    x = 8,467.39

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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.