Home / 20,122.25-30,185.04-6,271.25

Finding the Fourth Proportional to 20,122.25, 30,185.04 and 6,271.25

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Solution

The fourth proportional to 20,122.25, 30,185.04 and 6,271.25 is: 9,407.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,122.25 : 30,185.04 = 6,271.25 : x
  2. Step 2: Convert to fraction form
    20,122.25/30,185.04 = 6,271.25/x
  3. Step 3: Cross multiply
    20,122.25x = 30,185.04 × 6,271.25
  4. Step 4: Simplify right side
    20,122.25x = 189,297,932.10
  5. Step 5: Solve for x
    x = 189,297,932.10/20,122.25
  6. Step 6: Final answer
    x = 9,407.39

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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.