Home / 21,819.69-32,702.09-11,824.07

Finding the Fourth Proportional to 21,819.69, 32,702.09 and 11,824.07

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Solution

The fourth proportional to 21,819.69, 32,702.09 and 11,824.07 is: 17,721.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,819.69 : 32,702.09 = 11,824.07 : x
  2. Step 2: Convert to fraction form
    21,819.69/32,702.09 = 11,824.07/x
  3. Step 3: Cross multiply
    21,819.69x = 32,702.09 × 11,824.07
  4. Step 4: Simplify right side
    21,819.69x = 386,671,578.68
  5. Step 5: Solve for x
    x = 386,671,578.68/21,819.69
  6. Step 6: Final answer
    x = 17,721.22

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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.