Home / 28,245.22-38,976.24-15,496.36

Finding the Fourth Proportional to 28,245.22, 38,976.24 and 15,496.36

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Solution

The fourth proportional to 28,245.22, 38,976.24 and 15,496.36 is: 21,383.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,245.22 : 38,976.24 = 15,496.36 : x
  2. Step 2: Convert to fraction form
    28,245.22/38,976.24 = 15,496.36/x
  3. Step 3: Cross multiply
    28,245.22x = 38,976.24 × 15,496.36
  4. Step 4: Simplify right side
    28,245.22x = 603,989,846.49
  5. Step 5: Solve for x
    x = 603,989,846.49/28,245.22
  6. Step 6: Final answer
    x = 21,383.79

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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.