Home / 20,055.37-27,679.33-11,555.85

Finding the Fourth Proportional to 20,055.37, 27,679.33 and 11,555.85

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Solution

The fourth proportional to 20,055.37, 27,679.33 and 11,555.85 is: 15,948.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,055.37 : 27,679.33 = 11,555.85 : x
  2. Step 2: Convert to fraction form
    20,055.37/27,679.33 = 11,555.85/x
  3. Step 3: Cross multiply
    20,055.37x = 27,679.33 × 11,555.85
  4. Step 4: Simplify right side
    20,055.37x = 319,858,185.58
  5. Step 5: Solve for x
    x = 319,858,185.58/20,055.37
  6. Step 6: Final answer
    x = 15,948.76

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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.