Home / 21,079.85-29,092.03-11,650.23

Finding the Fourth Proportional to 21,079.85, 29,092.03 and 11,650.23

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Solution

The fourth proportional to 21,079.85, 29,092.03 and 11,650.23 is: 16,078.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,079.85 : 29,092.03 = 11,650.23 : x
  2. Step 2: Convert to fraction form
    21,079.85/29,092.03 = 11,650.23/x
  3. Step 3: Cross multiply
    21,079.85x = 29,092.03 × 11,650.23
  4. Step 4: Simplify right side
    21,079.85x = 338,928,811.54
  5. Step 5: Solve for x
    x = 338,928,811.54/21,079.85
  6. Step 6: Final answer
    x = 16,078.34

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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.