Home / 21,133.55-29,194.67-16,879.02

Finding the Fourth Proportional to 21,133.55, 29,194.67 and 16,879.02

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Solution

The fourth proportional to 21,133.55, 29,194.67 and 16,879.02 is: 23,317.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,133.55 : 29,194.67 = 16,879.02 : x
  2. Step 2: Convert to fraction form
    21,133.55/29,194.67 = 16,879.02/x
  3. Step 3: Cross multiply
    21,133.55x = 29,194.67 × 16,879.02
  4. Step 4: Simplify right side
    21,133.55x = 492,777,418.82
  5. Step 5: Solve for x
    x = 492,777,418.82/21,133.55
  6. Step 6: Final answer
    x = 23,317.31

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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.