Home / 20,294.55-28,007.37-11,342.03

Finding the Fourth Proportional to 20,294.55, 28,007.37 and 11,342.03

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Solution

The fourth proportional to 20,294.55, 28,007.37 and 11,342.03 is: 15,652.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,294.55 : 28,007.37 = 11,342.03 : x
  2. Step 2: Convert to fraction form
    20,294.55/28,007.37 = 11,342.03/x
  3. Step 3: Cross multiply
    20,294.55x = 28,007.37 × 11,342.03
  4. Step 4: Simplify right side
    20,294.55x = 317,660,290.72
  5. Step 5: Solve for x
    x = 317,660,290.72/20,294.55
  6. Step 6: Final answer
    x = 15,652.49

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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.