Home / 30,323.24-41,842.87-18,679.60

Finding the Fourth Proportional to 30,323.24, 41,842.87 and 18,679.60

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Solution

The fourth proportional to 30,323.24, 41,842.87 and 18,679.60 is: 25,775.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,323.24 : 41,842.87 = 18,679.60 : x
  2. Step 2: Convert to fraction form
    30,323.24/41,842.87 = 18,679.60/x
  3. Step 3: Cross multiply
    30,323.24x = 41,842.87 × 18,679.60
  4. Step 4: Simplify right side
    30,323.24x = 781,608,074.45
  5. Step 5: Solve for x
    x = 781,608,074.45/30,323.24
  6. Step 6: Final answer
    x = 25,775.88

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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.