Home / 20,176.94-27,847.59-11,679.30

Finding the Fourth Proportional to 20,176.94, 27,847.59 and 11,679.30

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Solution

The fourth proportional to 20,176.94, 27,847.59 and 11,679.30 is: 16,119.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,176.94 : 27,847.59 = 11,679.30 : x
  2. Step 2: Convert to fraction form
    20,176.94/27,847.59 = 11,679.30/x
  3. Step 3: Cross multiply
    20,176.94x = 27,847.59 × 11,679.30
  4. Step 4: Simplify right side
    20,176.94x = 325,240,357.89
  5. Step 5: Solve for x
    x = 325,240,357.89/20,176.94
  6. Step 6: Final answer
    x = 16,119.41

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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.