Home / 20,490.24-30,745.38-7,343.64

Finding the Fourth Proportional to 20,490.24, 30,745.38 and 7,343.64

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Solution

The fourth proportional to 20,490.24, 30,745.38 and 7,343.64 is: 11,019.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,490.24 : 30,745.38 = 7,343.64 : x
  2. Step 2: Convert to fraction form
    20,490.24/30,745.38 = 7,343.64/x
  3. Step 3: Cross multiply
    20,490.24x = 30,745.38 × 7,343.64
  4. Step 4: Simplify right side
    20,490.24x = 225,783,002.38
  5. Step 5: Solve for x
    x = 225,783,002.38/20,490.24
  6. Step 6: Final answer
    x = 11,019.05

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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.