Home / 20,456.44-28,223.10-16,673.12

Finding the Fourth Proportional to 20,456.44, 28,223.10 and 16,673.12

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Solution

The fourth proportional to 20,456.44, 28,223.10 and 16,673.12 is: 23,003.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,456.44 : 28,223.10 = 16,673.12 : x
  2. Step 2: Convert to fraction form
    20,456.44/28,223.10 = 16,673.12/x
  3. Step 3: Cross multiply
    20,456.44x = 28,223.10 × 16,673.12
  4. Step 4: Simplify right side
    20,456.44x = 470,567,133.07
  5. Step 5: Solve for x
    x = 470,567,133.07/20,456.44
  6. Step 6: Final answer
    x = 23,003.37

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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.