Home / 20,081.26-30,125.67-7,605.01

Finding the Fourth Proportional to 20,081.26, 30,125.67 and 7,605.01

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Solution

The fourth proportional to 20,081.26, 30,125.67 and 7,605.01 is: 11,408.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,081.26 : 30,125.67 = 7,605.01 : x
  2. Step 2: Convert to fraction form
    20,081.26/30,125.67 = 7,605.01/x
  3. Step 3: Cross multiply
    20,081.26x = 30,125.67 × 7,605.01
  4. Step 4: Simplify right side
    20,081.26x = 229,106,021.61
  5. Step 5: Solve for x
    x = 229,106,021.61/20,081.26
  6. Step 6: Final answer
    x = 11,408.95

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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.