Home / 19,865.49-27,416.81-11,481.99

Finding the Fourth Proportional to 19,865.49, 27,416.81 and 11,481.99

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Solution

The fourth proportional to 19,865.49, 27,416.81 and 11,481.99 is: 15,846.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,865.49 : 27,416.81 = 11,481.99 : x
  2. Step 2: Convert to fraction form
    19,865.49/27,416.81 = 11,481.99/x
  3. Step 3: Cross multiply
    19,865.49x = 27,416.81 × 11,481.99
  4. Step 4: Simplify right side
    19,865.49x = 314,799,480.84
  5. Step 5: Solve for x
    x = 314,799,480.84/19,865.49
  6. Step 6: Final answer
    x = 15,846.55

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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.