Home / 28,021.77-38,650.26-16,682.48

Finding the Fourth Proportional to 28,021.77, 38,650.26 and 16,682.48

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Solution

The fourth proportional to 28,021.77, 38,650.26 and 16,682.48 is: 23,010.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,021.77 : 38,650.26 = 16,682.48 : x
  2. Step 2: Convert to fraction form
    28,021.77/38,650.26 = 16,682.48/x
  3. Step 3: Cross multiply
    28,021.77x = 38,650.26 × 16,682.48
  4. Step 4: Simplify right side
    28,021.77x = 644,782,189.44
  5. Step 5: Solve for x
    x = 644,782,189.44/28,021.77
  6. Step 6: Final answer
    x = 23,010.05

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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.