Home / 19,758.87-27,277.16-15,272.49

Finding the Fourth Proportional to 19,758.87, 27,277.16 and 15,272.49

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Solution

The fourth proportional to 19,758.87, 27,277.16 and 15,272.49 is: 21,083.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,758.87 : 27,277.16 = 15,272.49 : x
  2. Step 2: Convert to fraction form
    19,758.87/27,277.16 = 15,272.49/x
  3. Step 3: Cross multiply
    19,758.87x = 27,277.16 × 15,272.49
  4. Step 4: Simplify right side
    19,758.87x = 416,590,076.97
  5. Step 5: Solve for x
    x = 416,590,076.97/19,758.87
  6. Step 6: Final answer
    x = 21,083.70

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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.