Home / 27,739.19-38,280.03-15,163.94

Finding the Fourth Proportional to 27,739.19, 38,280.03 and 15,163.94

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Solution

The fourth proportional to 27,739.19, 38,280.03 and 15,163.94 is: 20,926.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,739.19 : 38,280.03 = 15,163.94 : x
  2. Step 2: Convert to fraction form
    27,739.19/38,280.03 = 15,163.94/x
  3. Step 3: Cross multiply
    27,739.19x = 38,280.03 × 15,163.94
  4. Step 4: Simplify right side
    27,739.19x = 580,476,078.12
  5. Step 5: Solve for x
    x = 580,476,078.12/27,739.19
  6. Step 6: Final answer
    x = 20,926.21

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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.