Home / 20,924.58-28,868.77-11,968.82

Finding the Fourth Proportional to 20,924.58, 28,868.77 and 11,968.82

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Solution

The fourth proportional to 20,924.58, 28,868.77 and 11,968.82 is: 16,512.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,924.58 : 28,868.77 = 11,968.82 : x
  2. Step 2: Convert to fraction form
    20,924.58/28,868.77 = 11,968.82/x
  3. Step 3: Cross multiply
    20,924.58x = 28,868.77 × 11,968.82
  4. Step 4: Simplify right side
    20,924.58x = 345,525,111.75
  5. Step 5: Solve for x
    x = 345,525,111.75/20,924.58
  6. Step 6: Final answer
    x = 16,512.88

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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.