Home / 43,860.96-65,818.44-20,489.76

Finding the Fourth Proportional to 43,860.96, 65,818.44 and 20,489.76

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Solution

The fourth proportional to 43,860.96, 65,818.44 and 20,489.76 is: 30,747.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,860.96 : 65,818.44 = 20,489.76 : x
  2. Step 2: Convert to fraction form
    43,860.96/65,818.44 = 20,489.76/x
  3. Step 3: Cross multiply
    43,860.96x = 65,818.44 × 20,489.76
  4. Step 4: Simplify right side
    43,860.96x = 1,348,604,039.17
  5. Step 5: Solve for x
    x = 1,348,604,039.17/43,860.96
  6. Step 6: Final answer
    x = 30,747.25

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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.