Home / 19,865.56-27,415.44-10,912.96

Finding the Fourth Proportional to 19,865.56, 27,415.44 and 10,912.96

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Solution

The fourth proportional to 19,865.56, 27,415.44 and 10,912.96 is: 15,060.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,865.56 : 27,415.44 = 10,912.96 : x
  2. Step 2: Convert to fraction form
    19,865.56/27,415.44 = 10,912.96/x
  3. Step 3: Cross multiply
    19,865.56x = 27,415.44 × 10,912.96
  4. Step 4: Simplify right side
    19,865.56x = 299,183,600.10
  5. Step 5: Solve for x
    x = 299,183,600.10/19,865.56
  6. Step 6: Final answer
    x = 15,060.42

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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.