Home / 25,879.08-38,873.88-18,530.76

Finding the Fourth Proportional to 25,879.08, 38,873.88 and 18,530.76

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Solution

The fourth proportional to 25,879.08, 38,873.88 and 18,530.76 is: 27,835.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,879.08 : 38,873.88 = 18,530.76 : x
  2. Step 2: Convert to fraction form
    25,879.08/38,873.88 = 18,530.76/x
  3. Step 3: Cross multiply
    25,879.08x = 38,873.88 × 18,530.76
  4. Step 4: Simplify right side
    25,879.08x = 720,362,540.55
  5. Step 5: Solve for x
    x = 720,362,540.55/25,879.08
  6. Step 6: Final answer
    x = 27,835.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.