Home / 27,845.44-38,477.58-20,278.60

Finding the Fourth Proportional to 27,845.44, 38,477.58 and 20,278.60

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Solution

The fourth proportional to 27,845.44, 38,477.58 and 20,278.60 is: 28,021.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,845.44 : 38,477.58 = 20,278.60 : x
  2. Step 2: Convert to fraction form
    27,845.44/38,477.58 = 20,278.60/x
  3. Step 3: Cross multiply
    27,845.44x = 38,477.58 × 20,278.60
  4. Step 4: Simplify right side
    27,845.44x = 780,271,453.79
  5. Step 5: Solve for x
    x = 780,271,453.79/27,845.44
  6. Step 6: Final answer
    x = 28,021.52

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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.