Home / 21,944.40-30,273.60-13,984.80

Finding the Fourth Proportional to 21,944.40, 30,273.60 and 13,984.80

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Solution

The fourth proportional to 21,944.40, 30,273.60 and 13,984.80 is: 19,292.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,944.40 : 30,273.60 = 13,984.80 : x
  2. Step 2: Convert to fraction form
    21,944.40/30,273.60 = 13,984.80/x
  3. Step 3: Cross multiply
    21,944.40x = 30,273.60 × 13,984.80
  4. Step 4: Simplify right side
    21,944.40x = 423,370,241.28
  5. Step 5: Solve for x
    x = 423,370,241.28/21,944.40
  6. Step 6: Final answer
    x = 19,292.86

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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.