Home / 20,435.85-30,638.19-10,568.83

Finding the Fourth Proportional to 20,435.85, 30,638.19 and 10,568.83

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Solution

The fourth proportional to 20,435.85, 30,638.19 and 10,568.83 is: 15,845.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,435.85 : 30,638.19 = 10,568.83 : x
  2. Step 2: Convert to fraction form
    20,435.85/30,638.19 = 10,568.83/x
  3. Step 3: Cross multiply
    20,435.85x = 30,638.19 × 10,568.83
  4. Step 4: Simplify right side
    20,435.85x = 323,809,821.62
  5. Step 5: Solve for x
    x = 323,809,821.62/20,435.85
  6. Step 6: Final answer
    x = 15,845.18

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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.