Home / 20,708.54-28,578.48-11,635.48

Finding the Fourth Proportional to 20,708.54, 28,578.48 and 11,635.48

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Solution

The fourth proportional to 20,708.54, 28,578.48 and 11,635.48 is: 16,057.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,708.54 : 28,578.48 = 11,635.48 : x
  2. Step 2: Convert to fraction form
    20,708.54/28,578.48 = 11,635.48/x
  3. Step 3: Cross multiply
    20,708.54x = 28,578.48 × 11,635.48
  4. Step 4: Simplify right side
    20,708.54x = 332,524,332.47
  5. Step 5: Solve for x
    x = 332,524,332.47/20,708.54
  6. Step 6: Final answer
    x = 16,057.35

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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.