Home / 20,133.90-27,783.99-11,634.66

Finding the Fourth Proportional to 20,133.90, 27,783.99 and 11,634.66

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Solution

The fourth proportional to 20,133.90, 27,783.99 and 11,634.66 is: 16,055.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,133.90 : 27,783.99 = 11,634.66 : x
  2. Step 2: Convert to fraction form
    20,133.90/27,783.99 = 11,634.66/x
  3. Step 3: Cross multiply
    20,133.90x = 27,783.99 × 11,634.66
  4. Step 4: Simplify right side
    20,133.90x = 323,257,277.09
  5. Step 5: Solve for x
    x = 323,257,277.09/20,133.90
  6. Step 6: Final answer
    x = 16,055.37

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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.