Home / 30,142.08-41,600.96-28,813.12

Finding the Fourth Proportional to 30,142.08, 41,600.96 and 28,813.12

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Solution

The fourth proportional to 30,142.08, 41,600.96 and 28,813.12 is: 39,766.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,142.08 : 41,600.96 = 28,813.12 : x
  2. Step 2: Convert to fraction form
    30,142.08/41,600.96 = 28,813.12/x
  3. Step 3: Cross multiply
    30,142.08x = 41,600.96 × 28,813.12
  4. Step 4: Simplify right side
    30,142.08x = 1,198,653,452.60
  5. Step 5: Solve for x
    x = 1,198,653,452.60/30,142.08
  6. Step 6: Final answer
    x = 39,766.78

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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.