Home / 30,321.08-41,820.73-20,244.68

Finding the Fourth Proportional to 30,321.08, 41,820.73 and 20,244.68

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Solution

The fourth proportional to 30,321.08, 41,820.73 and 20,244.68 is: 27,922.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,321.08 : 41,820.73 = 20,244.68 : x
  2. Step 2: Convert to fraction form
    30,321.08/41,820.73 = 20,244.68/x
  3. Step 3: Cross multiply
    30,321.08x = 41,820.73 × 20,244.68
  4. Step 4: Simplify right side
    30,321.08x = 846,647,036.50
  5. Step 5: Solve for x
    x = 846,647,036.50/30,321.08
  6. Step 6: Final answer
    x = 27,922.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.