Home / 20,199.67-30,305.68-10,345.92

Finding the Fourth Proportional to 20,199.67, 30,305.68 and 10,345.92

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Solution

The fourth proportional to 20,199.67, 30,305.68 and 10,345.92 is: 15,522.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,199.67 : 30,305.68 = 10,345.92 : x
  2. Step 2: Convert to fraction form
    20,199.67/30,305.68 = 10,345.92/x
  3. Step 3: Cross multiply
    20,199.67x = 30,305.68 × 10,345.92
  4. Step 4: Simplify right side
    20,199.67x = 313,540,140.83
  5. Step 5: Solve for x
    x = 313,540,140.83/20,199.67
  6. Step 6: Final answer
    x = 15,522.04

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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.