Home / 20,272.88-28,003.44-16,308.92

Finding the Fourth Proportional to 20,272.88, 28,003.44 and 16,308.92

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Solution

The fourth proportional to 20,272.88, 28,003.44 and 16,308.92 is: 22,527.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,272.88 : 28,003.44 = 16,308.92 : x
  2. Step 2: Convert to fraction form
    20,272.88/28,003.44 = 16,308.92/x
  3. Step 3: Cross multiply
    20,272.88x = 28,003.44 × 16,308.92
  4. Step 4: Simplify right side
    20,272.88x = 456,705,862.68
  5. Step 5: Solve for x
    x = 456,705,862.68/20,272.88
  6. Step 6: Final answer
    x = 22,527.92

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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.