Home / 30,418.82-41,977.52-16,990.26

Finding the Fourth Proportional to 30,418.82, 41,977.52 and 16,990.26

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Solution

The fourth proportional to 30,418.82, 41,977.52 and 16,990.26 is: 23,446.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,418.82 : 41,977.52 = 16,990.26 : x
  2. Step 2: Convert to fraction form
    30,418.82/41,977.52 = 16,990.26/x
  3. Step 3: Cross multiply
    30,418.82x = 41,977.52 × 16,990.26
  4. Step 4: Simplify right side
    30,418.82x = 713,209,021.43
  5. Step 5: Solve for x
    x = 713,209,021.43/30,418.82
  6. Step 6: Final answer
    x = 23,446.31

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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.