Home / 27,692.99-38,215.07-15,757.43

Finding the Fourth Proportional to 27,692.99, 38,215.07 and 15,757.43

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Solution

The fourth proportional to 27,692.99, 38,215.07 and 15,757.43 is: 21,744.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,692.99 : 38,215.07 = 15,757.43 : x
  2. Step 2: Convert to fraction form
    27,692.99/38,215.07 = 15,757.43/x
  3. Step 3: Cross multiply
    27,692.99x = 38,215.07 × 15,757.43
  4. Step 4: Simplify right side
    27,692.99x = 602,171,290.47
  5. Step 5: Solve for x
    x = 602,171,290.47/27,692.99
  6. Step 6: Final answer
    x = 21,744.54

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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.