Home / 20,425.37-28,182.06-11,922.66

Finding the Fourth Proportional to 20,425.37, 28,182.06 and 11,922.66

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Solution

The fourth proportional to 20,425.37, 28,182.06 and 11,922.66 is: 16,450.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,425.37 : 28,182.06 = 11,922.66 : x
  2. Step 2: Convert to fraction form
    20,425.37/28,182.06 = 11,922.66/x
  3. Step 3: Cross multiply
    20,425.37x = 28,182.06 × 11,922.66
  4. Step 4: Simplify right side
    20,425.37x = 336,005,119.48
  5. Step 5: Solve for x
    x = 336,005,119.48/20,425.37
  6. Step 6: Final answer
    x = 16,450.39

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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.