Home / 20,984.91-31,477.38-6,193.60

Finding the Fourth Proportional to 20,984.91, 31,477.38 and 6,193.60

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Solution

The fourth proportional to 20,984.91, 31,477.38 and 6,193.60 is: 9,290.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,984.91 : 31,477.38 = 6,193.60 : x
  2. Step 2: Convert to fraction form
    20,984.91/31,477.38 = 6,193.60/x
  3. Step 3: Cross multiply
    20,984.91x = 31,477.38 × 6,193.60
  4. Step 4: Simplify right side
    20,984.91x = 194,958,198.85
  5. Step 5: Solve for x
    x = 194,958,198.85/20,984.91
  6. Step 6: Final answer
    x = 9,290.40

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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.