Home / 27,845.59-38,426.45-15,745.88

Finding the Fourth Proportional to 27,845.59, 38,426.45 and 15,745.88

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Solution

The fourth proportional to 27,845.59, 38,426.45 and 15,745.88 is: 21,729.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,845.59 : 38,426.45 = 15,745.88 : x
  2. Step 2: Convert to fraction form
    27,845.59/38,426.45 = 15,745.88/x
  3. Step 3: Cross multiply
    27,845.59x = 38,426.45 × 15,745.88
  4. Step 4: Simplify right side
    27,845.59x = 605,057,999.66
  5. Step 5: Solve for x
    x = 605,057,999.66/27,845.59
  6. Step 6: Final answer
    x = 21,729.04

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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.