Home / 28,820.25-43,230.38-8,043.75

Finding the Fourth Proportional to 28,820.25, 43,230.38 and 8,043.75

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Solution

The fourth proportional to 28,820.25, 43,230.38 and 8,043.75 is: 12,065.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,820.25 : 43,230.38 = 8,043.75 : x
  2. Step 2: Convert to fraction form
    28,820.25/43,230.38 = 8,043.75/x
  3. Step 3: Cross multiply
    28,820.25x = 43,230.38 × 8,043.75
  4. Step 4: Simplify right side
    28,820.25x = 347,734,328.91
  5. Step 5: Solve for x
    x = 347,734,328.91/28,820.25
  6. Step 6: Final answer
    x = 12,065.63

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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.