Home / 21,025.70-29,014.36-13,067.75

Finding the Fourth Proportional to 21,025.70, 29,014.36 and 13,067.75

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Solution

The fourth proportional to 21,025.70, 29,014.36 and 13,067.75 is: 18,032.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,025.70 : 29,014.36 = 13,067.75 : x
  2. Step 2: Convert to fraction form
    21,025.70/29,014.36 = 13,067.75/x
  3. Step 3: Cross multiply
    21,025.70x = 29,014.36 × 13,067.75
  4. Step 4: Simplify right side
    21,025.70x = 379,152,402.89
  5. Step 5: Solve for x
    x = 379,152,402.89/21,025.70
  6. Step 6: Final answer
    x = 18,032.81

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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.