Home / 30,408.54-41,963.37-16,980.03

Finding the Fourth Proportional to 30,408.54, 41,963.37 and 16,980.03

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Solution

The fourth proportional to 30,408.54, 41,963.37 and 16,980.03 is: 23,432.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,408.54 : 41,963.37 = 16,980.03 : x
  2. Step 2: Convert to fraction form
    30,408.54/41,963.37 = 16,980.03/x
  3. Step 3: Cross multiply
    30,408.54x = 41,963.37 × 16,980.03
  4. Step 4: Simplify right side
    30,408.54x = 712,539,281.50
  5. Step 5: Solve for x
    x = 712,539,281.50/30,408.54
  6. Step 6: Final answer
    x = 23,432.21

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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.