Home / 43,842.76-65,718.78-20,449.96

Finding the Fourth Proportional to 43,842.76, 65,718.78 and 20,449.96

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Solution

The fourth proportional to 43,842.76, 65,718.78 and 20,449.96 is: 30,653.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,842.76 : 65,718.78 = 20,449.96 : x
  2. Step 2: Convert to fraction form
    43,842.76/65,718.78 = 20,449.96/x
  3. Step 3: Cross multiply
    43,842.76x = 65,718.78 × 20,449.96
  4. Step 4: Simplify right side
    43,842.76x = 1,343,946,422.25
  5. Step 5: Solve for x
    x = 1,343,946,422.25/43,842.76
  6. Step 6: Final answer
    x = 30,653.78

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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.