Home / 21,670.26-29,906.73-12,240.60

Finding the Fourth Proportional to 21,670.26, 29,906.73 and 12,240.60

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Solution

The fourth proportional to 21,670.26, 29,906.73 and 12,240.60 is: 16,893.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,670.26 : 29,906.73 = 12,240.60 : x
  2. Step 2: Convert to fraction form
    21,670.26/29,906.73 = 12,240.60/x
  3. Step 3: Cross multiply
    21,670.26x = 29,906.73 × 12,240.60
  4. Step 4: Simplify right side
    21,670.26x = 366,076,319.24
  5. Step 5: Solve for x
    x = 366,076,319.24/21,670.26
  6. Step 6: Final answer
    x = 16,893.03

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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.