Home / 27,900.98-42,016.46-20,163.86

Finding the Fourth Proportional to 27,900.98, 42,016.46 and 20,163.86

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Solution

The fourth proportional to 27,900.98, 42,016.46 and 20,163.86 is: 30,365.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,900.98 : 42,016.46 = 20,163.86 : x
  2. Step 2: Convert to fraction form
    27,900.98/42,016.46 = 20,163.86/x
  3. Step 3: Cross multiply
    27,900.98x = 42,016.46 × 20,163.86
  4. Step 4: Simplify right side
    27,900.98x = 847,214,017.14
  5. Step 5: Solve for x
    x = 847,214,017.14/27,900.98
  6. Step 6: Final answer
    x = 30,365.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.