Home / 30,408.06-41,958.12-16,977.16

Finding the Fourth Proportional to 30,408.06, 41,958.12 and 16,977.16

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Solution

The fourth proportional to 30,408.06, 41,958.12 and 16,977.16 is: 23,425.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,408.06 : 41,958.12 = 16,977.16 : x
  2. Step 2: Convert to fraction form
    30,408.06/41,958.12 = 16,977.16/x
  3. Step 3: Cross multiply
    30,408.06x = 41,958.12 × 16,977.16
  4. Step 4: Simplify right side
    30,408.06x = 712,329,716.54
  5. Step 5: Solve for x
    x = 712,329,716.54/30,408.06
  6. Step 6: Final answer
    x = 23,425.69

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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.