Home / 20,888.78-31,330.09-6,093.73

Finding the Fourth Proportional to 20,888.78, 31,330.09 and 6,093.73

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Solution

The fourth proportional to 20,888.78, 31,330.09 and 6,093.73 is: 9,139.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,888.78 : 31,330.09 = 6,093.73 : x
  2. Step 2: Convert to fraction form
    20,888.78/31,330.09 = 6,093.73/x
  3. Step 3: Cross multiply
    20,888.78x = 31,330.09 × 6,093.73
  4. Step 4: Simplify right side
    20,888.78x = 190,916,922.22
  5. Step 5: Solve for x
    x = 190,916,922.22/20,888.78
  6. Step 6: Final answer
    x = 9,139.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.