Home / 20,674.06-31,021.35-8,193.81

Finding the Fourth Proportional to 20,674.06, 31,021.35 and 8,193.81

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Solution

The fourth proportional to 20,674.06, 31,021.35 and 8,193.81 is: 12,294.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,674.06 : 31,021.35 = 8,193.81 : x
  2. Step 2: Convert to fraction form
    20,674.06/31,021.35 = 8,193.81/x
  3. Step 3: Cross multiply
    20,674.06x = 31,021.35 × 8,193.81
  4. Step 4: Simplify right side
    20,674.06x = 254,183,133.45
  5. Step 5: Solve for x
    x = 254,183,133.45/20,674.06
  6. Step 6: Final answer
    x = 12,294.79

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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.