Home / 30,251.02-41,745.90-16,820.56

Finding the Fourth Proportional to 30,251.02, 41,745.90 and 16,820.56

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Solution

The fourth proportional to 30,251.02, 41,745.90 and 16,820.56 is: 23,212.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,251.02 : 41,745.90 = 16,820.56 : x
  2. Step 2: Convert to fraction form
    30,251.02/41,745.90 = 16,820.56/x
  3. Step 3: Cross multiply
    30,251.02x = 41,745.90 × 16,820.56
  4. Step 4: Simplify right side
    30,251.02x = 702,189,415.70
  5. Step 5: Solve for x
    x = 702,189,415.70/30,251.02
  6. Step 6: Final answer
    x = 23,212.09

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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.