Home / 39,765.44-54,873.99-21,860.44

Finding the Fourth Proportional to 39,765.44, 54,873.99 and 21,860.44

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Solution

The fourth proportional to 39,765.44, 54,873.99 and 21,860.44 is: 30,166.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,765.44 : 54,873.99 = 21,860.44 : x
  2. Step 2: Convert to fraction form
    39,765.44/54,873.99 = 21,860.44/x
  3. Step 3: Cross multiply
    39,765.44x = 54,873.99 × 21,860.44
  4. Step 4: Simplify right side
    39,765.44x = 1,199,569,906.83
  5. Step 5: Solve for x
    x = 1,199,569,906.83/39,765.44
  6. Step 6: Final answer
    x = 30,166.14

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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.