Home / 28,796.85-39,739.19-16,221.33

Finding the Fourth Proportional to 28,796.85, 39,739.19 and 16,221.33

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Solution

The fourth proportional to 28,796.85, 39,739.19 and 16,221.33 is: 22,385.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,796.85 : 39,739.19 = 16,221.33 : x
  2. Step 2: Convert to fraction form
    28,796.85/39,739.19 = 16,221.33/x
  3. Step 3: Cross multiply
    28,796.85x = 39,739.19 × 16,221.33
  4. Step 4: Simplify right side
    28,796.85x = 644,622,433.82
  5. Step 5: Solve for x
    x = 644,622,433.82/28,796.85
  6. Step 6: Final answer
    x = 22,385.17

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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.