Home / 20,935.58-28,891.63-11,504.38

Finding the Fourth Proportional to 20,935.58, 28,891.63 and 11,504.38

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Solution

The fourth proportional to 20,935.58, 28,891.63 and 11,504.38 is: 15,876.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,935.58 : 28,891.63 = 11,504.38 : x
  2. Step 2: Convert to fraction form
    20,935.58/28,891.63 = 11,504.38/x
  3. Step 3: Cross multiply
    20,935.58x = 28,891.63 × 11,504.38
  4. Step 4: Simplify right side
    20,935.58x = 332,380,290.34
  5. Step 5: Solve for x
    x = 332,380,290.34/20,935.58
  6. Step 6: Final answer
    x = 15,876.34

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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.