Home / 20,076.53-27,705.58-11,124.61

Finding the Fourth Proportional to 20,076.53, 27,705.58 and 11,124.61

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Solution

The fourth proportional to 20,076.53, 27,705.58 and 11,124.61 is: 15,351.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,076.53 : 27,705.58 = 11,124.61 : x
  2. Step 2: Convert to fraction form
    20,076.53/27,705.58 = 11,124.61/x
  3. Step 3: Cross multiply
    20,076.53x = 27,705.58 × 11,124.61
  4. Step 4: Simplify right side
    20,076.53x = 308,213,675.25
  5. Step 5: Solve for x
    x = 308,213,675.25/20,076.53
  6. Step 6: Final answer
    x = 15,351.94

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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.