Home / 21,771.23-32,571.78-19,117.67

Finding the Fourth Proportional to 21,771.23, 32,571.78 and 19,117.67

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Solution

The fourth proportional to 21,771.23, 32,571.78 and 19,117.67 is: 28,601.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,771.23 : 32,571.78 = 19,117.67 : x
  2. Step 2: Convert to fraction form
    21,771.23/32,571.78 = 19,117.67/x
  3. Step 3: Cross multiply
    21,771.23x = 32,571.78 × 19,117.67
  4. Step 4: Simplify right side
    21,771.23x = 622,696,378.49
  5. Step 5: Solve for x
    x = 622,696,378.49/21,771.23
  6. Step 6: Final answer
    x = 28,601.81

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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.