Home / 27,361.56-37,758.68-15,428.75

Finding the Fourth Proportional to 27,361.56, 37,758.68 and 15,428.75

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Solution

The fourth proportional to 27,361.56, 37,758.68 and 15,428.75 is: 21,291.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,361.56 : 37,758.68 = 15,428.75 : x
  2. Step 2: Convert to fraction form
    27,361.56/37,758.68 = 15,428.75/x
  3. Step 3: Cross multiply
    27,361.56x = 37,758.68 × 15,428.75
  4. Step 4: Simplify right side
    27,361.56x = 582,568,968.11
  5. Step 5: Solve for x
    x = 582,568,968.11/27,361.56
  6. Step 6: Final answer
    x = 21,291.51

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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.