Home / 28,997.28-43,512.30-12,355.56

Finding the Fourth Proportional to 28,997.28, 43,512.30 and 12,355.56

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Solution

The fourth proportional to 28,997.28, 43,512.30 and 12,355.56 is: 18,540.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,997.28 : 43,512.30 = 12,355.56 : x
  2. Step 2: Convert to fraction form
    28,997.28/43,512.30 = 12,355.56/x
  3. Step 3: Cross multiply
    28,997.28x = 43,512.30 × 12,355.56
  4. Step 4: Simplify right side
    28,997.28x = 537,618,833.39
  5. Step 5: Solve for x
    x = 537,618,833.39/28,997.28
  6. Step 6: Final answer
    x = 18,540.32

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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.