Home / 20,078.04-30,107.04-11,760.12

Finding the Fourth Proportional to 20,078.04, 30,107.04 and 11,760.12

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Solution

The fourth proportional to 20,078.04, 30,107.04 and 11,760.12 is: 17,634.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,078.04 : 30,107.04 = 11,760.12 : x
  2. Step 2: Convert to fraction form
    20,078.04/30,107.04 = 11,760.12/x
  3. Step 3: Cross multiply
    20,078.04x = 30,107.04 × 11,760.12
  4. Step 4: Simplify right side
    20,078.04x = 354,062,403.24
  5. Step 5: Solve for x
    x = 354,062,403.24/20,078.04
  6. Step 6: Final answer
    x = 17,634.31

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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.