Home / 20,650.45-30,977.73-6,606.96

Finding the Fourth Proportional to 20,650.45, 30,977.73 and 6,606.96

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Solution

The fourth proportional to 20,650.45, 30,977.73 and 6,606.96 is: 9,911.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,650.45 : 30,977.73 = 6,606.96 : x
  2. Step 2: Convert to fraction form
    20,650.45/30,977.73 = 6,606.96/x
  3. Step 3: Cross multiply
    20,650.45x = 30,977.73 × 6,606.96
  4. Step 4: Simplify right side
    20,650.45x = 204,668,623.00
  5. Step 5: Solve for x
    x = 204,668,623.00/20,650.45
  6. Step 6: Final answer
    x = 9,911.10

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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.