Home / 20,357.35-28,094.87-11,404.73

Finding the Fourth Proportional to 20,357.35, 28,094.87 and 11,404.73

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Solution

The fourth proportional to 20,357.35, 28,094.87 and 11,404.73 is: 15,739.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,357.35 : 28,094.87 = 11,404.73 : x
  2. Step 2: Convert to fraction form
    20,357.35/28,094.87 = 11,404.73/x
  3. Step 3: Cross multiply
    20,357.35x = 28,094.87 × 11,404.73
  4. Step 4: Simplify right side
    20,357.35x = 320,414,406.74
  5. Step 5: Solve for x
    x = 320,414,406.74/20,357.35
  6. Step 6: Final answer
    x = 15,739.49

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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.