Home / 27,729.14-38,261.79-15,792.70

Finding the Fourth Proportional to 27,729.14, 38,261.79 and 15,792.70

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Solution

The fourth proportional to 27,729.14, 38,261.79 and 15,792.70 is: 21,791.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,729.14 : 38,261.79 = 15,792.70 : x
  2. Step 2: Convert to fraction form
    27,729.14/38,261.79 = 15,792.70/x
  3. Step 3: Cross multiply
    27,729.14x = 38,261.79 × 15,792.70
  4. Step 4: Simplify right side
    27,729.14x = 604,256,970.93
  5. Step 5: Solve for x
    x = 604,256,970.93/27,729.14
  6. Step 6: Final answer
    x = 21,791.41

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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.