Home / 31,630.32-47,453.16-16,638

Finding the Fourth Proportional to 31,630.32, 47,453.16 and 16,638

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Solution

The fourth proportional to 31,630.32, 47,453.16 and 16,638 is: 24,961.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,630.32 : 47,453.16 = 16,638 : x
  2. Step 2: Convert to fraction form
    31,630.32/47,453.16 = 16,638/x
  3. Step 3: Cross multiply
    31,630.32x = 47,453.16 × 16,638
  4. Step 4: Simplify right side
    31,630.32x = 789,525,676.08
  5. Step 5: Solve for x
    x = 789,525,676.08/31,630.32
  6. Step 6: Final answer
    x = 24,961.04

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.