Home / 30,675.85-46,014.20-20,212.85

Finding the Fourth Proportional to 30,675.85, 46,014.20 and 20,212.85

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Solution

The fourth proportional to 30,675.85, 46,014.20 and 20,212.85 is: 30,319.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,675.85 : 46,014.20 = 20,212.85 : x
  2. Step 2: Convert to fraction form
    30,675.85/46,014.20 = 20,212.85/x
  3. Step 3: Cross multiply
    30,675.85x = 46,014.20 × 20,212.85
  4. Step 4: Simplify right side
    30,675.85x = 930,078,122.47
  5. Step 5: Solve for x
    x = 930,078,122.47/30,675.85
  6. Step 6: Final answer
    x = 30,319.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.