Home / 20,196.07-27,872.09-11,700.48

Finding the Fourth Proportional to 20,196.07, 27,872.09 and 11,700.48

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Solution

The fourth proportional to 20,196.07, 27,872.09 and 11,700.48 is: 16,147.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,196.07 : 27,872.09 = 11,700.48 : x
  2. Step 2: Convert to fraction form
    20,196.07/27,872.09 = 11,700.48/x
  3. Step 3: Cross multiply
    20,196.07x = 27,872.09 × 11,700.48
  4. Step 4: Simplify right side
    20,196.07x = 326,116,831.60
  5. Step 5: Solve for x
    x = 326,116,831.60/20,196.07
  6. Step 6: Final answer
    x = 16,147.54

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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.