Home / 21,714.44-29,987.76-18,713.48

Finding the Fourth Proportional to 21,714.44, 29,987.76 and 18,713.48

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Solution

The fourth proportional to 21,714.44, 29,987.76 and 18,713.48 is: 25,843.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,714.44 : 29,987.76 = 18,713.48 : x
  2. Step 2: Convert to fraction form
    21,714.44/29,987.76 = 18,713.48/x
  3. Step 3: Cross multiply
    21,714.44x = 29,987.76 × 18,713.48
  4. Step 4: Simplify right side
    21,714.44x = 561,175,347.00
  5. Step 5: Solve for x
    x = 561,175,347.00/21,714.44
  6. Step 6: Final answer
    x = 25,843.42

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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.