Home / 21,696.19-29,940.96-12,746.59

Finding the Fourth Proportional to 21,696.19, 29,940.96 and 12,746.59

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Solution

The fourth proportional to 21,696.19, 29,940.96 and 12,746.59 is: 17,590.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,696.19 : 29,940.96 = 12,746.59 : x
  2. Step 2: Convert to fraction form
    21,696.19/29,940.96 = 12,746.59/x
  3. Step 3: Cross multiply
    21,696.19x = 29,940.96 × 12,746.59
  4. Step 4: Simplify right side
    21,696.19x = 381,645,141.33
  5. Step 5: Solve for x
    x = 381,645,141.33/21,696.19
  6. Step 6: Final answer
    x = 17,590.42

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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.