Home / 43,575.84-65,341.89-20,218.68

Finding the Fourth Proportional to 43,575.84, 65,341.89 and 20,218.68

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Solution

The fourth proportional to 43,575.84, 65,341.89 and 20,218.68 is: 30,317.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,575.84 : 65,341.89 = 20,218.68 : x
  2. Step 2: Convert to fraction form
    43,575.84/65,341.89 = 20,218.68/x
  3. Step 3: Cross multiply
    43,575.84x = 65,341.89 × 20,218.68
  4. Step 4: Simplify right side
    43,575.84x = 1,321,126,764.51
  5. Step 5: Solve for x
    x = 1,321,126,764.51/43,575.84
  6. Step 6: Final answer
    x = 30,317.87

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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.