Home / 21,021.51-29,008.22-11,824.44

Finding the Fourth Proportional to 21,021.51, 29,008.22 and 11,824.44

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Solution

The fourth proportional to 21,021.51, 29,008.22 and 11,824.44 is: 16,316.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,021.51 : 29,008.22 = 11,824.44 : x
  2. Step 2: Convert to fraction form
    21,021.51/29,008.22 = 11,824.44/x
  3. Step 3: Cross multiply
    21,021.51x = 29,008.22 × 11,824.44
  4. Step 4: Simplify right side
    21,021.51x = 343,005,956.90
  5. Step 5: Solve for x
    x = 343,005,956.90/21,021.51
  6. Step 6: Final answer
    x = 16,316.90

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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.