Home / 20,076.93-30,115.44-11,814.57

Finding the Fourth Proportional to 20,076.93, 30,115.44 and 11,814.57

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Solution

The fourth proportional to 20,076.93, 30,115.44 and 11,814.57 is: 17,721.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,076.93 : 30,115.44 = 11,814.57 : x
  2. Step 2: Convert to fraction form
    20,076.93/30,115.44 = 11,814.57/x
  3. Step 3: Cross multiply
    20,076.93x = 30,115.44 × 11,814.57
  4. Step 4: Simplify right side
    20,076.93x = 355,800,973.96
  5. Step 5: Solve for x
    x = 355,800,973.96/20,076.93
  6. Step 6: Final answer
    x = 17,721.88

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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.