Home / 20,450.79-30,676.14-6,410.88

Finding the Fourth Proportional to 20,450.79, 30,676.14 and 6,410.88

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Solution

The fourth proportional to 20,450.79, 30,676.14 and 6,410.88 is: 9,616.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,450.79 : 30,676.14 = 6,410.88 : x
  2. Step 2: Convert to fraction form
    20,450.79/30,676.14 = 6,410.88/x
  3. Step 3: Cross multiply
    20,450.79x = 30,676.14 × 6,410.88
  4. Step 4: Simplify right side
    20,450.79x = 196,661,052.40
  5. Step 5: Solve for x
    x = 196,661,052.40/20,450.79
  6. Step 6: Final answer
    x = 9,616.31

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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.