Home / 21,741.36-29,987.55-19,954.64

Finding the Fourth Proportional to 21,741.36, 29,987.55 and 19,954.64

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Solution

The fourth proportional to 21,741.36, 29,987.55 and 19,954.64 is: 27,523.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,741.36 : 29,987.55 = 19,954.64 : x
  2. Step 2: Convert to fraction form
    21,741.36/29,987.55 = 19,954.64/x
  3. Step 3: Cross multiply
    21,741.36x = 29,987.55 × 19,954.64
  4. Step 4: Simplify right side
    21,741.36x = 598,390,614.79
  5. Step 5: Solve for x
    x = 598,390,614.79/21,741.36
  6. Step 6: Final answer
    x = 27,523.15

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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.