Home / 19,938.82-27,515.67-10,986.85

Finding the Fourth Proportional to 19,938.82, 27,515.67 and 10,986.85

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Solution

The fourth proportional to 19,938.82, 27,515.67 and 10,986.85 is: 15,161.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,938.82 : 27,515.67 = 10,986.85 : x
  2. Step 2: Convert to fraction form
    19,938.82/27,515.67 = 10,986.85/x
  3. Step 3: Cross multiply
    19,938.82x = 27,515.67 × 10,986.85
  4. Step 4: Simplify right side
    19,938.82x = 302,310,538.94
  5. Step 5: Solve for x
    x = 302,310,538.94/19,938.82
  6. Step 6: Final answer
    x = 15,161.91

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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.