Home / 21,317.08-31,974.45-6,525.99

Finding the Fourth Proportional to 21,317.08, 31,974.45 and 6,525.99

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Solution

The fourth proportional to 21,317.08, 31,974.45 and 6,525.99 is: 9,788.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,317.08 : 31,974.45 = 6,525.99 : x
  2. Step 2: Convert to fraction form
    21,317.08/31,974.45 = 6,525.99/x
  3. Step 3: Cross multiply
    21,317.08x = 31,974.45 × 6,525.99
  4. Step 4: Simplify right side
    21,317.08x = 208,664,940.96
  5. Step 5: Solve for x
    x = 208,664,940.96/21,317.08
  6. Step 6: Final answer
    x = 9,788.63

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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.