Home / 20,422.24-30,590.30-9,338.25

Finding the Fourth Proportional to 20,422.24, 30,590.30 and 9,338.25

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Solution

The fourth proportional to 20,422.24, 30,590.30 and 9,338.25 is: 13,987.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,422.24 : 30,590.30 = 9,338.25 : x
  2. Step 2: Convert to fraction form
    20,422.24/30,590.30 = 9,338.25/x
  3. Step 3: Cross multiply
    20,422.24x = 30,590.30 × 9,338.25
  4. Step 4: Simplify right side
    20,422.24x = 285,660,007.03
  5. Step 5: Solve for x
    x = 285,660,007.03/20,422.24
  6. Step 6: Final answer
    x = 13,987.69

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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.