Home / 27,847.97-38,429.74-15,748.28

Finding the Fourth Proportional to 27,847.97, 38,429.74 and 15,748.28

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Solution

The fourth proportional to 27,847.97, 38,429.74 and 15,748.28 is: 21,732.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,847.97 : 38,429.74 = 15,748.28 : x
  2. Step 2: Convert to fraction form
    27,847.97/38,429.74 = 15,748.28/x
  3. Step 3: Cross multiply
    27,847.97x = 38,429.74 × 15,748.28
  4. Step 4: Simplify right side
    27,847.97x = 605,202,305.85
  5. Step 5: Solve for x
    x = 605,202,305.85/27,847.97
  6. Step 6: Final answer
    x = 21,732.37

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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.