Home / 20,764.26-28,654.56-11,332.89

Finding the Fourth Proportional to 20,764.26, 28,654.56 and 11,332.89

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Solution

The fourth proportional to 20,764.26, 28,654.56 and 11,332.89 is: 15,639.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,764.26 : 28,654.56 = 11,332.89 : x
  2. Step 2: Convert to fraction form
    20,764.26/28,654.56 = 11,332.89/x
  3. Step 3: Cross multiply
    20,764.26x = 28,654.56 × 11,332.89
  4. Step 4: Simplify right side
    20,764.26x = 324,738,976.48
  5. Step 5: Solve for x
    x = 324,738,976.48/20,764.26
  6. Step 6: Final answer
    x = 15,639.32

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1.5x scale

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.