Home / 21,371.25-29,492.06-11,940.33

Finding the Fourth Proportional to 21,371.25, 29,492.06 and 11,940.33

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Solution

The fourth proportional to 21,371.25, 29,492.06 and 11,940.33 is: 16,477.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,371.25 : 29,492.06 = 11,940.33 : x
  2. Step 2: Convert to fraction form
    21,371.25/29,492.06 = 11,940.33/x
  3. Step 3: Cross multiply
    21,371.25x = 29,492.06 × 11,940.33
  4. Step 4: Simplify right side
    21,371.25x = 352,144,869.08
  5. Step 5: Solve for x
    x = 352,144,869.08/21,371.25
  6. Step 6: Final answer
    x = 16,477.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.