Home / 20,266.44-30,399.10-6,415.08

Finding the Fourth Proportional to 20,266.44, 30,399.10 and 6,415.08

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Solution

The fourth proportional to 20,266.44, 30,399.10 and 6,415.08 is: 9,622.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,266.44 : 30,399.10 = 6,415.08 : x
  2. Step 2: Convert to fraction form
    20,266.44/30,399.10 = 6,415.08/x
  3. Step 3: Cross multiply
    20,266.44x = 30,399.10 × 6,415.08
  4. Step 4: Simplify right side
    20,266.44x = 195,012,658.43
  5. Step 5: Solve for x
    x = 195,012,658.43/20,266.44
  6. Step 6: Final answer
    x = 9,622.44

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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.