Home / 20,021.93-27,630.60-11,638.43

Finding the Fourth Proportional to 20,021.93, 27,630.60 and 11,638.43

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Solution

The fourth proportional to 20,021.93, 27,630.60 and 11,638.43 is: 16,061.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,021.93 : 27,630.60 = 11,638.43 : x
  2. Step 2: Convert to fraction form
    20,021.93/27,630.60 = 11,638.43/x
  3. Step 3: Cross multiply
    20,021.93x = 27,630.60 × 11,638.43
  4. Step 4: Simplify right side
    20,021.93x = 321,576,803.96
  5. Step 5: Solve for x
    x = 321,576,803.96/20,021.93
  6. Step 6: Final answer
    x = 16,061.23

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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.