Home / 21,164.97-29,195.87-19,663.23

Finding the Fourth Proportional to 21,164.97, 29,195.87 and 19,663.23

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Solution

The fourth proportional to 21,164.97, 29,195.87 and 19,663.23 is: 27,124.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,164.97 : 29,195.87 = 19,663.23 : x
  2. Step 2: Convert to fraction form
    21,164.97/29,195.87 = 19,663.23/x
  3. Step 3: Cross multiply
    21,164.97x = 29,195.87 × 19,663.23
  4. Step 4: Simplify right side
    21,164.97x = 574,085,008.54
  5. Step 5: Solve for x
    x = 574,085,008.54/21,164.97
  6. Step 6: Final answer
    x = 27,124.30

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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.