Home / 20,135.52-27,783.84-11,634.48

Finding the Fourth Proportional to 20,135.52, 27,783.84 and 11,634.48

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Solution

The fourth proportional to 20,135.52, 27,783.84 and 11,634.48 is: 16,053.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,135.52 : 27,783.84 = 11,634.48 : x
  2. Step 2: Convert to fraction form
    20,135.52/27,783.84 = 11,634.48/x
  3. Step 3: Cross multiply
    20,135.52x = 27,783.84 × 11,634.48
  4. Step 4: Simplify right side
    20,135.52x = 323,250,530.80
  5. Step 5: Solve for x
    x = 323,250,530.80/20,135.52
  6. Step 6: Final answer
    x = 16,053.75

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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.