Home / 30,250.45-41,745.54-16,821.87

Finding the Fourth Proportional to 30,250.45, 41,745.54 and 16,821.87

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Solution

The fourth proportional to 30,250.45, 41,745.54 and 16,821.87 is: 23,214.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,250.45 : 41,745.54 = 16,821.87 : x
  2. Step 2: Convert to fraction form
    30,250.45/41,745.54 = 16,821.87/x
  3. Step 3: Cross multiply
    30,250.45x = 41,745.54 × 16,821.87
  4. Step 4: Simplify right side
    30,250.45x = 702,238,046.96
  5. Step 5: Solve for x
    x = 702,238,046.96/30,250.45
  6. Step 6: Final answer
    x = 23,214.14

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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.