Home / 27,940.25-38,548.10-15,839.43

Finding the Fourth Proportional to 27,940.25, 38,548.10 and 15,839.43

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Solution

The fourth proportional to 27,940.25, 38,548.10 and 15,839.43 is: 21,853.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,940.25 : 38,548.10 = 15,839.43 : x
  2. Step 2: Convert to fraction form
    27,940.25/38,548.10 = 15,839.43/x
  3. Step 3: Cross multiply
    27,940.25x = 38,548.10 × 15,839.43
  4. Step 4: Simplify right side
    27,940.25x = 610,579,738.84
  5. Step 5: Solve for x
    x = 610,579,738.84/27,940.25
  6. Step 6: Final answer
    x = 21,853.06

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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.