Home / 21,745.06-30,022.55-16,700.21

Finding the Fourth Proportional to 21,745.06, 30,022.55 and 16,700.21

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Solution

The fourth proportional to 21,745.06, 30,022.55 and 16,700.21 is: 23,057.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,745.06 : 30,022.55 = 16,700.21 : x
  2. Step 2: Convert to fraction form
    21,745.06/30,022.55 = 16,700.21/x
  3. Step 3: Cross multiply
    21,745.06x = 30,022.55 × 16,700.21
  4. Step 4: Simplify right side
    21,745.06x = 501,382,831.33
  5. Step 5: Solve for x
    x = 501,382,831.33/21,745.06
  6. Step 6: Final answer
    x = 23,057.32

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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.