Home / 21,625.01-29,825.72-13,664.33

Finding the Fourth Proportional to 21,625.01, 29,825.72 and 13,664.33

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Solution

The fourth proportional to 21,625.01, 29,825.72 and 13,664.33 is: 18,846.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,625.01 : 29,825.72 = 13,664.33 : x
  2. Step 2: Convert to fraction form
    21,625.01/29,825.72 = 13,664.33/x
  3. Step 3: Cross multiply
    21,625.01x = 29,825.72 × 13,664.33
  4. Step 4: Simplify right side
    21,625.01x = 407,548,480.57
  5. Step 5: Solve for x
    x = 407,548,480.57/21,625.01
  6. Step 6: Final answer
    x = 18,846.16

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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.