Home / 19,129.86-28,662.38-11,718.84

Finding the Fourth Proportional to 19,129.86, 28,662.38 and 11,718.84

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Solution

The fourth proportional to 19,129.86, 28,662.38 and 11,718.84 is: 17,558.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,129.86 : 28,662.38 = 11,718.84 : x
  2. Step 2: Convert to fraction form
    19,129.86/28,662.38 = 11,718.84/x
  3. Step 3: Cross multiply
    19,129.86x = 28,662.38 × 11,718.84
  4. Step 4: Simplify right side
    19,129.86x = 335,889,845.24
  5. Step 5: Solve for x
    x = 335,889,845.24/19,129.86
  6. Step 6: Final answer
    x = 17,558.41

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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.