Home / 20,984.33-28,958.48-11,552.88

Finding the Fourth Proportional to 20,984.33, 28,958.48 and 11,552.88

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Solution

The fourth proportional to 20,984.33, 28,958.48 and 11,552.88 is: 15,943.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,984.33 : 28,958.48 = 11,552.88 : x
  2. Step 2: Convert to fraction form
    20,984.33/28,958.48 = 11,552.88/x
  3. Step 3: Cross multiply
    20,984.33x = 28,958.48 × 11,552.88
  4. Step 4: Simplify right side
    20,984.33x = 334,553,786.66
  5. Step 5: Solve for x
    x = 334,553,786.66/20,984.33
  6. Step 6: Final answer
    x = 15,943.03

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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.