Home / 20,927.82-31,384-6,883.75

Finding the Fourth Proportional to 20,927.82, 31,384 and 6,883.75

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Solution

The fourth proportional to 20,927.82, 31,384 and 6,883.75 is: 10,323.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,927.82 : 31,384 = 6,883.75 : x
  2. Step 2: Convert to fraction form
    20,927.82/31,384 = 6,883.75/x
  3. Step 3: Cross multiply
    20,927.82x = 31,384 × 6,883.75
  4. Step 4: Simplify right side
    20,927.82x = 216,039,610
  5. Step 5: Solve for x
    x = 216,039,610/20,927.82
  6. Step 6: Final answer
    x = 10,323.08

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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.