Home / 20,277.88-27,983.29-11,203.23

Finding the Fourth Proportional to 20,277.88, 27,983.29 and 11,203.23

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Solution

The fourth proportional to 20,277.88, 27,983.29 and 11,203.23 is: 15,460.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,277.88 : 27,983.29 = 11,203.23 : x
  2. Step 2: Convert to fraction form
    20,277.88/27,983.29 = 11,203.23/x
  3. Step 3: Cross multiply
    20,277.88x = 27,983.29 × 11,203.23
  4. Step 4: Simplify right side
    20,277.88x = 313,503,174.56
  5. Step 5: Solve for x
    x = 313,503,174.56/20,277.88
  6. Step 6: Final answer
    x = 15,460.35

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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.