Home / 21,177.24-29,223.77-11,745.60

Finding the Fourth Proportional to 21,177.24, 29,223.77 and 11,745.60

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Solution

The fourth proportional to 21,177.24, 29,223.77 and 11,745.60 is: 16,208.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,177.24 : 29,223.77 = 11,745.60 : x
  2. Step 2: Convert to fraction form
    21,177.24/29,223.77 = 11,745.60/x
  3. Step 3: Cross multiply
    21,177.24x = 29,223.77 × 11,745.60
  4. Step 4: Simplify right side
    21,177.24x = 343,250,654.18
  5. Step 5: Solve for x
    x = 343,250,654.18/21,177.24
  6. Step 6: Final answer
    x = 16,208.47

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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.