Home / 20,208.96-27,891.72-11,709.60

Finding the Fourth Proportional to 20,208.96, 27,891.72 and 11,709.60

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Solution

The fourth proportional to 20,208.96, 27,891.72 and 11,709.60 is: 16,161.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,208.96 : 27,891.72 = 11,709.60 : x
  2. Step 2: Convert to fraction form
    20,208.96/27,891.72 = 11,709.60/x
  3. Step 3: Cross multiply
    20,208.96x = 27,891.72 × 11,709.60
  4. Step 4: Simplify right side
    20,208.96x = 326,600,884.51
  5. Step 5: Solve for x
    x = 326,600,884.51/20,208.96
  6. Step 6: Final answer
    x = 16,161.19

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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.