Home / 20,226.13-30,343.52-7,078.93

Finding the Fourth Proportional to 20,226.13, 30,343.52 and 7,078.93

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Solution

The fourth proportional to 20,226.13, 30,343.52 and 7,078.93 is: 10,619.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,226.13 : 30,343.52 = 7,078.93 : x
  2. Step 2: Convert to fraction form
    20,226.13/30,343.52 = 7,078.93/x
  3. Step 3: Cross multiply
    20,226.13x = 30,343.52 × 7,078.93
  4. Step 4: Simplify right side
    20,226.13x = 214,799,654.03
  5. Step 5: Solve for x
    x = 214,799,654.03/20,226.13
  6. Step 6: Final answer
    x = 10,619.91

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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.