Home / 19,758.88-27,277.16-15,272.48

Finding the Fourth Proportional to 19,758.88, 27,277.16 and 15,272.48

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Solution

The fourth proportional to 19,758.88, 27,277.16 and 15,272.48 is: 21,083.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,758.88 : 27,277.16 = 15,272.48 : x
  2. Step 2: Convert to fraction form
    19,758.88/27,277.16 = 15,272.48/x
  3. Step 3: Cross multiply
    19,758.88x = 27,277.16 × 15,272.48
  4. Step 4: Simplify right side
    19,758.88x = 416,589,880.56
  5. Step 5: Solve for x
    x = 416,589,880.56/19,758.88
  6. Step 6: Final answer
    x = 21,083.68

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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.