Home / 20,745.70-28,606.42-14,019.66

Finding the Fourth Proportional to 20,745.70, 28,606.42 and 14,019.66

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Solution

The fourth proportional to 20,745.70, 28,606.42 and 14,019.66 is: 19,331.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,745.70 : 28,606.42 = 14,019.66 : x
  2. Step 2: Convert to fraction form
    20,745.70/28,606.42 = 14,019.66/x
  3. Step 3: Cross multiply
    20,745.70x = 28,606.42 × 14,019.66
  4. Step 4: Simplify right side
    20,745.70x = 401,052,282.22
  5. Step 5: Solve for x
    x = 401,052,282.22/20,745.70
  6. Step 6: Final answer
    x = 19,331.83

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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.