Home / 30,276.39-41,757.75-19,669.44

Finding the Fourth Proportional to 30,276.39, 41,757.75 and 19,669.44

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Solution

The fourth proportional to 30,276.39, 41,757.75 and 19,669.44 is: 27,128.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,276.39 : 41,757.75 = 19,669.44 : x
  2. Step 2: Convert to fraction form
    30,276.39/41,757.75 = 19,669.44/x
  3. Step 3: Cross multiply
    30,276.39x = 41,757.75 × 19,669.44
  4. Step 4: Simplify right side
    30,276.39x = 821,351,558.16
  5. Step 5: Solve for x
    x = 821,351,558.16/30,276.39
  6. Step 6: Final answer
    x = 27,128.45

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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.