Home / 20,450.26-28,211.88-11,952.74

Finding the Fourth Proportional to 20,450.26, 28,211.88 and 11,952.74

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Solution

The fourth proportional to 20,450.26, 28,211.88 and 11,952.74 is: 16,489.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,450.26 : 28,211.88 = 11,952.74 : x
  2. Step 2: Convert to fraction form
    20,450.26/28,211.88 = 11,952.74/x
  3. Step 3: Cross multiply
    20,450.26x = 28,211.88 × 11,952.74
  4. Step 4: Simplify right side
    20,450.26x = 337,209,189.59
  5. Step 5: Solve for x
    x = 337,209,189.59/20,450.26
  6. Step 6: Final answer
    x = 16,489.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.