Home / 20,773.88-28,668.07-11,342.54

Finding the Fourth Proportional to 20,773.88, 28,668.07 and 11,342.54

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Solution

The fourth proportional to 20,773.88, 28,668.07 and 11,342.54 is: 15,652.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,773.88 : 28,668.07 = 11,342.54 : x
  2. Step 2: Convert to fraction form
    20,773.88/28,668.07 = 11,342.54/x
  3. Step 3: Cross multiply
    20,773.88x = 28,668.07 × 11,342.54
  4. Step 4: Simplify right side
    20,773.88x = 325,168,730.70
  5. Step 5: Solve for x
    x = 325,168,730.70/20,773.88
  6. Step 6: Final answer
    x = 15,652.77

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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.