Home / 31,201.80-46,768.14-18,738.60

Finding the Fourth Proportional to 31,201.80, 46,768.14 and 18,738.60

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Solution

The fourth proportional to 31,201.80, 46,768.14 and 18,738.60 is: 28,087.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,201.80 : 46,768.14 = 18,738.60 : x
  2. Step 2: Convert to fraction form
    31,201.80/46,768.14 = 18,738.60/x
  3. Step 3: Cross multiply
    31,201.80x = 46,768.14 × 18,738.60
  4. Step 4: Simplify right side
    31,201.80x = 876,369,468.20
  5. Step 5: Solve for x
    x = 876,369,468.20/31,201.80
  6. Step 6: Final answer
    x = 28,087.14

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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.