Home / 20,927.56-31,384.66-6,884.37

Finding the Fourth Proportional to 20,927.56, 31,384.66 and 6,884.37

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Solution

The fourth proportional to 20,927.56, 31,384.66 and 6,884.37 is: 10,324.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,927.56 : 31,384.66 = 6,884.37 : x
  2. Step 2: Convert to fraction form
    20,927.56/31,384.66 = 6,884.37/x
  3. Step 3: Cross multiply
    20,927.56x = 31,384.66 × 6,884.37
  4. Step 4: Simplify right side
    20,927.56x = 216,063,611.76
  5. Step 5: Solve for x
    x = 216,063,611.76/20,927.56
  6. Step 6: Final answer
    x = 10,324.36

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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.