Home / 19,736.35-27,236.21-11,778.40

Finding the Fourth Proportional to 19,736.35, 27,236.21 and 11,778.40

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Solution

The fourth proportional to 19,736.35, 27,236.21 and 11,778.40 is: 16,254.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,736.35 : 27,236.21 = 11,778.40 : x
  2. Step 2: Convert to fraction form
    19,736.35/27,236.21 = 11,778.40/x
  3. Step 3: Cross multiply
    19,736.35x = 27,236.21 × 11,778.40
  4. Step 4: Simplify right side
    19,736.35x = 320,798,975.86
  5. Step 5: Solve for x
    x = 320,798,975.86/19,736.35
  6. Step 6: Final answer
    x = 16,254.22

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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.