Home / 21,214.44-31,809.24-6,418.98

Finding the Fourth Proportional to 21,214.44, 31,809.24 and 6,418.98

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Solution

The fourth proportional to 21,214.44, 31,809.24 and 6,418.98 is: 9,624.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,214.44 : 31,809.24 = 6,418.98 : x
  2. Step 2: Convert to fraction form
    21,214.44/31,809.24 = 6,418.98/x
  3. Step 3: Cross multiply
    21,214.44x = 31,809.24 × 6,418.98
  4. Step 4: Simplify right side
    21,214.44x = 204,182,875.38
  5. Step 5: Solve for x
    x = 204,182,875.38/21,214.44
  6. Step 6: Final answer
    x = 9,624.71

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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.