Home / 20,449.67-28,220.24-11,497.19

Finding the Fourth Proportional to 20,449.67, 28,220.24 and 11,497.19

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Solution

The fourth proportional to 20,449.67, 28,220.24 and 11,497.19 is: 15,865.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,449.67 : 28,220.24 = 11,497.19 : x
  2. Step 2: Convert to fraction form
    20,449.67/28,220.24 = 11,497.19/x
  3. Step 3: Cross multiply
    20,449.67x = 28,220.24 × 11,497.19
  4. Step 4: Simplify right side
    20,449.67x = 324,453,284.10
  5. Step 5: Solve for x
    x = 324,453,284.10/20,449.67
  6. Step 6: Final answer
    x = 15,865.94

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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.