Home / 21,940.08-32,894.76-8,085.36

Finding the Fourth Proportional to 21,940.08, 32,894.76 and 8,085.36

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Solution

The fourth proportional to 21,940.08, 32,894.76 and 8,085.36 is: 12,122.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,940.08 : 32,894.76 = 8,085.36 : x
  2. Step 2: Convert to fraction form
    21,940.08/32,894.76 = 8,085.36/x
  3. Step 3: Cross multiply
    21,940.08x = 32,894.76 × 8,085.36
  4. Step 4: Simplify right side
    21,940.08x = 265,965,976.71
  5. Step 5: Solve for x
    x = 265,965,976.71/21,940.08
  6. Step 6: Final answer
    x = 12,122.38

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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.