Home / 20,571.66-28,388.34-11,619.18

Finding the Fourth Proportional to 20,571.66, 28,388.34 and 11,619.18

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Solution

The fourth proportional to 20,571.66, 28,388.34 and 11,619.18 is: 16,034.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,571.66 : 28,388.34 = 11,619.18 : x
  2. Step 2: Convert to fraction form
    20,571.66/28,388.34 = 11,619.18/x
  3. Step 3: Cross multiply
    20,571.66x = 28,388.34 × 11,619.18
  4. Step 4: Simplify right side
    20,571.66x = 329,849,232.36
  5. Step 5: Solve for x
    x = 329,849,232.36/20,571.66
  6. Step 6: Final answer
    x = 16,034.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.