Home / 27,847.27-38,428.73-15,747.56

Finding the Fourth Proportional to 27,847.27, 38,428.73 and 15,747.56

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Solution

The fourth proportional to 27,847.27, 38,428.73 and 15,747.56 is: 21,731.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,847.27 : 38,428.73 = 15,747.56 : x
  2. Step 2: Convert to fraction form
    27,847.27/38,428.73 = 15,747.56/x
  3. Step 3: Cross multiply
    27,847.27x = 38,428.73 × 15,747.56
  4. Step 4: Simplify right side
    27,847.27x = 605,158,879.84
  5. Step 5: Solve for x
    x = 605,158,879.84/27,847.27
  6. Step 6: Final answer
    x = 21,731.36

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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.