Home / 20,221.44-30,308.16-15,274.56

Finding the Fourth Proportional to 20,221.44, 30,308.16 and 15,274.56

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Solution

The fourth proportional to 20,221.44, 30,308.16 and 15,274.56 is: 22,893.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,221.44 : 30,308.16 = 15,274.56 : x
  2. Step 2: Convert to fraction form
    20,221.44/30,308.16 = 15,274.56/x
  3. Step 3: Cross multiply
    20,221.44x = 30,308.16 × 15,274.56
  4. Step 4: Simplify right side
    20,221.44x = 462,943,808.41
  5. Step 5: Solve for x
    x = 462,943,808.41/20,221.44
  6. Step 6: Final answer
    x = 22,893.71

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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.