Home / 20,676.34-30,973.86-13,634.86

Finding the Fourth Proportional to 20,676.34, 30,973.86 and 13,634.86

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Solution

The fourth proportional to 20,676.34, 30,973.86 and 13,634.86 is: 20,425.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,676.34 : 30,973.86 = 13,634.86 : x
  2. Step 2: Convert to fraction form
    20,676.34/30,973.86 = 13,634.86/x
  3. Step 3: Cross multiply
    20,676.34x = 30,973.86 × 13,634.86
  4. Step 4: Simplify right side
    20,676.34x = 422,324,244.76
  5. Step 5: Solve for x
    x = 422,324,244.76/20,676.34
  6. Step 6: Final answer
    x = 20,425.48

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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.