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Finding the Fourth Proportional to 30,408.31, 41,958.47 and 16,977.41

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Solution

The fourth proportional to 30,408.31, 41,958.47 and 16,977.41 is: 23,426.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,408.31 : 41,958.47 = 16,977.41 : x
  2. Step 2: Convert to fraction form
    30,408.31/41,958.47 = 16,977.41/x
  3. Step 3: Cross multiply
    30,408.31x = 41,958.47 × 16,977.41
  4. Step 4: Simplify right side
    30,408.31x = 712,346,063.28
  5. Step 5: Solve for x
    x = 712,346,063.28/30,408.31
  6. Step 6: Final answer
    x = 23,426.03

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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.