Home / 21,286.44-31,929.59-6,495.32

Finding the Fourth Proportional to 21,286.44, 31,929.59 and 6,495.32

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Solution

The fourth proportional to 21,286.44, 31,929.59 and 6,495.32 is: 9,742.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,286.44 : 31,929.59 = 6,495.32 : x
  2. Step 2: Convert to fraction form
    21,286.44/31,929.59 = 6,495.32/x
  3. Step 3: Cross multiply
    21,286.44x = 31,929.59 × 6,495.32
  4. Step 4: Simplify right side
    21,286.44x = 207,392,712.39
  5. Step 5: Solve for x
    x = 207,392,712.39/21,286.44
  6. Step 6: Final answer
    x = 9,742.95

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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.