Home / 20,830.37-28,770.44-14,104.28

Finding the Fourth Proportional to 20,830.37, 28,770.44 and 14,104.28

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Solution

The fourth proportional to 20,830.37, 28,770.44 and 14,104.28 is: 19,480.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,830.37 : 28,770.44 = 14,104.28 : x
  2. Step 2: Convert to fraction form
    20,830.37/28,770.44 = 14,104.28/x
  3. Step 3: Cross multiply
    20,830.37x = 28,770.44 × 14,104.28
  4. Step 4: Simplify right side
    20,830.37x = 405,786,260.39
  5. Step 5: Solve for x
    x = 405,786,260.39/20,830.37
  6. Step 6: Final answer
    x = 19,480.52

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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.