Home / 20,394.48-30,600.36-11,149.68

Finding the Fourth Proportional to 20,394.48, 30,600.36 and 11,149.68

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Solution

The fourth proportional to 20,394.48, 30,600.36 and 11,149.68 is: 16,729.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,394.48 : 30,600.36 = 11,149.68 : x
  2. Step 2: Convert to fraction form
    20,394.48/30,600.36 = 11,149.68/x
  3. Step 3: Cross multiply
    20,394.48x = 30,600.36 × 11,149.68
  4. Step 4: Simplify right side
    20,394.48x = 341,184,221.88
  5. Step 5: Solve for x
    x = 341,184,221.88/20,394.48
  6. Step 6: Final answer
    x = 16,729.24

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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.