Home / 30,173.85-41,642.98-16,745.20

Finding the Fourth Proportional to 30,173.85, 41,642.98 and 16,745.20

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Solution

The fourth proportional to 30,173.85, 41,642.98 and 16,745.20 is: 23,110.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,173.85 : 41,642.98 = 16,745.20 : x
  2. Step 2: Convert to fraction form
    30,173.85/41,642.98 = 16,745.20/x
  3. Step 3: Cross multiply
    30,173.85x = 41,642.98 × 16,745.20
  4. Step 4: Simplify right side
    30,173.85x = 697,319,882.73
  5. Step 5: Solve for x
    x = 697,319,882.73/30,173.85
  6. Step 6: Final answer
    x = 23,110.07

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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.