Home / 26,993.35-37,234.78-21,015.55

Finding the Fourth Proportional to 26,993.35, 37,234.78 and 21,015.55

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Solution

The fourth proportional to 26,993.35, 37,234.78 and 21,015.55 is: 28,988.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,993.35 : 37,234.78 = 21,015.55 : x
  2. Step 2: Convert to fraction form
    26,993.35/37,234.78 = 21,015.55/x
  3. Step 3: Cross multiply
    26,993.35x = 37,234.78 × 21,015.55
  4. Step 4: Simplify right side
    26,993.35x = 782,509,380.83
  5. Step 5: Solve for x
    x = 782,509,380.83/26,993.35
  6. Step 6: Final answer
    x = 28,988.97

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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.