Home / 20,660.13-30,992.49-6,616.85

Finding the Fourth Proportional to 20,660.13, 30,992.49 and 6,616.85

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Solution

The fourth proportional to 20,660.13, 30,992.49 and 6,616.85 is: 9,926.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,660.13 : 30,992.49 = 6,616.85 : x
  2. Step 2: Convert to fraction form
    20,660.13/30,992.49 = 6,616.85/x
  3. Step 3: Cross multiply
    20,660.13x = 30,992.49 × 6,616.85
  4. Step 4: Simplify right side
    20,660.13x = 205,072,502.49
  5. Step 5: Solve for x
    x = 205,072,502.49/20,660.13
  6. Step 6: Final answer
    x = 9,926.00

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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.