Home / 20,584.67-28,396.37-13,018.25

Finding the Fourth Proportional to 20,584.67, 28,396.37 and 13,018.25

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Solution

The fourth proportional to 20,584.67, 28,396.37 and 13,018.25 is: 17,958.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,584.67 : 28,396.37 = 13,018.25 : x
  2. Step 2: Convert to fraction form
    20,584.67/28,396.37 = 13,018.25/x
  3. Step 3: Cross multiply
    20,584.67x = 28,396.37 × 13,018.25
  4. Step 4: Simplify right side
    20,584.67x = 369,671,147.29
  5. Step 5: Solve for x
    x = 369,671,147.29/20,584.67
  6. Step 6: Final answer
    x = 17,958.57

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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.