Home / 27,743.82-38,283.69-15,806.43

Finding the Fourth Proportional to 27,743.82, 38,283.69 and 15,806.43

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Solution

The fourth proportional to 27,743.82, 38,283.69 and 15,806.43 is: 21,811.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,743.82 : 38,283.69 = 15,806.43 : x
  2. Step 2: Convert to fraction form
    27,743.82/38,283.69 = 15,806.43/x
  3. Step 3: Cross multiply
    27,743.82x = 38,283.69 × 15,806.43
  4. Step 4: Simplify right side
    27,743.82x = 605,128,466.13
  5. Step 5: Solve for x
    x = 605,128,466.13/27,743.82
  6. Step 6: Final answer
    x = 21,811.29

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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.