Home / 25,871.82-38,749.38-18,115.26

Finding the Fourth Proportional to 25,871.82, 38,749.38 and 18,115.26

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Solution

The fourth proportional to 25,871.82, 38,749.38 and 18,115.26 is: 27,132.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,871.82 : 38,749.38 = 18,115.26 : x
  2. Step 2: Convert to fraction form
    25,871.82/38,749.38 = 18,115.26/x
  3. Step 3: Cross multiply
    25,871.82x = 38,749.38 × 18,115.26
  4. Step 4: Simplify right side
    25,871.82x = 701,955,093.54
  5. Step 5: Solve for x
    x = 701,955,093.54/25,871.82
  6. Step 6: Final answer
    x = 27,132.03

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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.