Home / 19,939.19-27,515.94-10,986.48

Finding the Fourth Proportional to 19,939.19, 27,515.94 and 10,986.48

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Solution

The fourth proportional to 19,939.19, 27,515.94 and 10,986.48 is: 15,161.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,939.19 : 27,515.94 = 10,986.48 : x
  2. Step 2: Convert to fraction form
    19,939.19/27,515.94 = 10,986.48/x
  3. Step 3: Cross multiply
    19,939.19x = 27,515.94 × 10,986.48
  4. Step 4: Simplify right side
    19,939.19x = 302,303,324.49
  5. Step 5: Solve for x
    x = 302,303,324.49/19,939.19
  6. Step 6: Final answer
    x = 15,161.26

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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.