Home / 30,172.06-41,610.19-18,842.59

Finding the Fourth Proportional to 30,172.06, 41,610.19 and 18,842.59

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Solution

The fourth proportional to 30,172.06, 41,610.19 and 18,842.59 is: 25,985.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,172.06 : 41,610.19 = 18,842.59 : x
  2. Step 2: Convert to fraction form
    30,172.06/41,610.19 = 18,842.59/x
  3. Step 3: Cross multiply
    30,172.06x = 41,610.19 × 18,842.59
  4. Step 4: Simplify right side
    30,172.06x = 784,043,447.73
  5. Step 5: Solve for x
    x = 784,043,447.73/30,172.06
  6. Step 6: Final answer
    x = 25,985.75

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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.