Home / 21,018.82-31,528.14-6,227.84

Finding the Fourth Proportional to 21,018.82, 31,528.14 and 6,227.84

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Solution

The fourth proportional to 21,018.82, 31,528.14 and 6,227.84 is: 9,341.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,018.82 : 31,528.14 = 6,227.84 : x
  2. Step 2: Convert to fraction form
    21,018.82/31,528.14 = 6,227.84/x
  3. Step 3: Cross multiply
    21,018.82x = 31,528.14 × 6,227.84
  4. Step 4: Simplify right side
    21,018.82x = 196,352,211.42
  5. Step 5: Solve for x
    x = 196,352,211.42/21,018.82
  6. Step 6: Final answer
    x = 9,341.73

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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.