Home / 20,186.48-27,860.68-11,801.36

Finding the Fourth Proportional to 20,186.48, 27,860.68 and 11,801.36

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Solution

The fourth proportional to 20,186.48, 27,860.68 and 11,801.36 is: 16,287.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,186.48 : 27,860.68 = 11,801.36 : x
  2. Step 2: Convert to fraction form
    20,186.48/27,860.68 = 11,801.36/x
  3. Step 3: Cross multiply
    20,186.48x = 27,860.68 × 11,801.36
  4. Step 4: Simplify right side
    20,186.48x = 328,793,914.52
  5. Step 5: Solve for x
    x = 328,793,914.52/20,186.48
  6. Step 6: Final answer
    x = 16,287.83

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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.