Home / 20,494.29-30,741.30-11,722.98

Finding the Fourth Proportional to 20,494.29, 30,741.30 and 11,722.98

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Solution

The fourth proportional to 20,494.29, 30,741.30 and 11,722.98 is: 17,584.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,494.29 : 30,741.30 = 11,722.98 : x
  2. Step 2: Convert to fraction form
    20,494.29/30,741.30 = 11,722.98/x
  3. Step 3: Cross multiply
    20,494.29x = 30,741.30 × 11,722.98
  4. Step 4: Simplify right side
    20,494.29x = 360,379,645.07
  5. Step 5: Solve for x
    x = 360,379,645.07/20,494.29
  6. Step 6: Final answer
    x = 17,584.39

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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.