Home / 18,297.13-25,236.11-15,749.22

Finding the Fourth Proportional to 18,297.13, 25,236.11 and 15,749.22

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Solution

The fourth proportional to 18,297.13, 25,236.11 and 15,749.22 is: 21,721.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,297.13 : 25,236.11 = 15,749.22 : x
  2. Step 2: Convert to fraction form
    18,297.13/25,236.11 = 15,749.22/x
  3. Step 3: Cross multiply
    18,297.13x = 25,236.11 × 15,749.22
  4. Step 4: Simplify right side
    18,297.13x = 397,449,058.27
  5. Step 5: Solve for x
    x = 397,449,058.27/18,297.13
  6. Step 6: Final answer
    x = 21,721.94

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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.