Home / 28,593.39-42,842.65-20,231.96

Finding the Fourth Proportional to 28,593.39, 42,842.65 and 20,231.96

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Solution

The fourth proportional to 28,593.39, 42,842.65 and 20,231.96 is: 30,314.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,593.39 : 42,842.65 = 20,231.96 : x
  2. Step 2: Convert to fraction form
    28,593.39/42,842.65 = 20,231.96/x
  3. Step 3: Cross multiply
    28,593.39x = 42,842.65 × 20,231.96
  4. Step 4: Simplify right side
    28,593.39x = 866,790,566.88
  5. Step 5: Solve for x
    x = 866,790,566.88/28,593.39
  6. Step 6: Final answer
    x = 30,314.37

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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.