Home / 25,620.67-38,431.87-8,992.28

Finding the Fourth Proportional to 25,620.67, 38,431.87 and 8,992.28

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Solution

The fourth proportional to 25,620.67, 38,431.87 and 8,992.28 is: 13,488.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,620.67 : 38,431.87 = 8,992.28 : x
  2. Step 2: Convert to fraction form
    25,620.67/38,431.87 = 8,992.28/x
  3. Step 3: Cross multiply
    25,620.67x = 38,431.87 × 8,992.28
  4. Step 4: Simplify right side
    25,620.67x = 345,590,209.56
  5. Step 5: Solve for x
    x = 345,590,209.56/25,620.67
  6. Step 6: Final answer
    x = 13,488.73

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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.