Home / 30,021.75-41,430.02-16,773.75

Finding the Fourth Proportional to 30,021.75, 41,430.02 and 16,773.75

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Solution

The fourth proportional to 30,021.75, 41,430.02 and 16,773.75 is: 23,147.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,021.75 : 41,430.02 = 16,773.75 : x
  2. Step 2: Convert to fraction form
    30,021.75/41,430.02 = 16,773.75/x
  3. Step 3: Cross multiply
    30,021.75x = 41,430.02 × 16,773.75
  4. Step 4: Simplify right side
    30,021.75x = 694,936,714.11
  5. Step 5: Solve for x
    x = 694,936,714.11/30,021.75
  6. Step 6: Final answer
    x = 23,147.78

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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.