Home / 25,775.72-38,668.44-8,240.84

Finding the Fourth Proportional to 25,775.72, 38,668.44 and 8,240.84

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Solution

The fourth proportional to 25,775.72, 38,668.44 and 8,240.84 is: 12,362.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,775.72 : 38,668.44 = 8,240.84 : x
  2. Step 2: Convert to fraction form
    25,775.72/38,668.44 = 8,240.84/x
  3. Step 3: Cross multiply
    25,775.72x = 38,668.44 × 8,240.84
  4. Step 4: Simplify right side
    25,775.72x = 318,660,427.09
  5. Step 5: Solve for x
    x = 318,660,427.09/25,775.72
  6. Step 6: Final answer
    x = 12,362.81

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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.