Home / 28,103.25-38,765.52-18,539.73

Finding the Fourth Proportional to 28,103.25, 38,765.52 and 18,539.73

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Solution

The fourth proportional to 28,103.25, 38,765.52 and 18,539.73 is: 25,573.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,103.25 : 38,765.52 = 18,539.73 : x
  2. Step 2: Convert to fraction form
    28,103.25/38,765.52 = 18,539.73/x
  3. Step 3: Cross multiply
    28,103.25x = 38,765.52 × 18,539.73
  4. Step 4: Simplify right side
    28,103.25x = 718,702,274.11
  5. Step 5: Solve for x
    x = 718,702,274.11/28,103.25
  6. Step 6: Final answer
    x = 25,573.64

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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.