Home / 21,261.06-29,339.55-11,829.42

Finding the Fourth Proportional to 21,261.06, 29,339.55 and 11,829.42

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Solution

The fourth proportional to 21,261.06, 29,339.55 and 11,829.42 is: 16,324.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,261.06 : 29,339.55 = 11,829.42 : x
  2. Step 2: Convert to fraction form
    21,261.06/29,339.55 = 11,829.42/x
  3. Step 3: Cross multiply
    21,261.06x = 29,339.55 × 11,829.42
  4. Step 4: Simplify right side
    21,261.06x = 347,069,859.56
  5. Step 5: Solve for x
    x = 347,069,859.56/21,261.06
  6. Step 6: Final answer
    x = 16,324.20

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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.