Home / 21,286.70-31,934.69-6,495.22

Finding the Fourth Proportional to 21,286.70, 31,934.69 and 6,495.22

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Solution

The fourth proportional to 21,286.70, 31,934.69 and 6,495.22 is: 9,744.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,286.70 : 31,934.69 = 6,495.22 : x
  2. Step 2: Convert to fraction form
    21,286.70/31,934.69 = 6,495.22/x
  3. Step 3: Cross multiply
    21,286.70x = 31,934.69 × 6,495.22
  4. Step 4: Simplify right side
    21,286.70x = 207,422,868.98
  5. Step 5: Solve for x
    x = 207,422,868.98/21,286.70
  6. Step 6: Final answer
    x = 9,744.25

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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.