Home / 19,163.09-28,730.31-13,223.03

Finding the Fourth Proportional to 19,163.09, 28,730.31 and 13,223.03

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Solution

The fourth proportional to 19,163.09, 28,730.31 and 13,223.03 is: 19,824.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,163.09 : 28,730.31 = 13,223.03 : x
  2. Step 2: Convert to fraction form
    19,163.09/28,730.31 = 13,223.03/x
  3. Step 3: Cross multiply
    19,163.09x = 28,730.31 × 13,223.03
  4. Step 4: Simplify right side
    19,163.09x = 379,901,751.04
  5. Step 5: Solve for x
    x = 379,901,751.04/19,163.09
  6. Step 6: Final answer
    x = 19,824.66

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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.