Home / 21,207.22-29,268.30-12,133.42

Finding the Fourth Proportional to 21,207.22, 29,268.30 and 12,133.42

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Solution

The fourth proportional to 21,207.22, 29,268.30 and 12,133.42 is: 16,745.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,207.22 : 29,268.30 = 12,133.42 : x
  2. Step 2: Convert to fraction form
    21,207.22/29,268.30 = 12,133.42/x
  3. Step 3: Cross multiply
    21,207.22x = 29,268.30 × 12,133.42
  4. Step 4: Simplify right side
    21,207.22x = 355,124,548.92
  5. Step 5: Solve for x
    x = 355,124,548.92/21,207.22
  6. Step 6: Final answer
    x = 16,745.46

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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.