Home / 31,119.58-46,679.43-20,656.54

Finding the Fourth Proportional to 31,119.58, 46,679.43 and 20,656.54

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Solution

The fourth proportional to 31,119.58, 46,679.43 and 20,656.54 is: 30,984.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,119.58 : 46,679.43 = 20,656.54 : x
  2. Step 2: Convert to fraction form
    31,119.58/46,679.43 = 20,656.54/x
  3. Step 3: Cross multiply
    31,119.58x = 46,679.43 × 20,656.54
  4. Step 4: Simplify right side
    31,119.58x = 964,235,512.97
  5. Step 5: Solve for x
    x = 964,235,512.97/31,119.58
  6. Step 6: Final answer
    x = 30,984.85

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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.