Home / 28,945.60-43,418.40-8,166.40

Finding the Fourth Proportional to 28,945.60, 43,418.40 and 8,166.40

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Solution

The fourth proportional to 28,945.60, 43,418.40 and 8,166.40 is: 12,249.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,945.60 : 43,418.40 = 8,166.40 : x
  2. Step 2: Convert to fraction form
    28,945.60/43,418.40 = 8,166.40/x
  3. Step 3: Cross multiply
    28,945.60x = 43,418.40 × 8,166.40
  4. Step 4: Simplify right side
    28,945.60x = 354,572,021.76
  5. Step 5: Solve for x
    x = 354,572,021.76/28,945.60
  6. Step 6: Final answer
    x = 12,249.60

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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.