Home / 28,195.24-38,910.82-15,620.04

Finding the Fourth Proportional to 28,195.24, 38,910.82 and 15,620.04

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Solution

The fourth proportional to 28,195.24, 38,910.82 and 15,620.04 is: 21,556.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,195.24 : 38,910.82 = 15,620.04 : x
  2. Step 2: Convert to fraction form
    28,195.24/38,910.82 = 15,620.04/x
  3. Step 3: Cross multiply
    28,195.24x = 38,910.82 × 15,620.04
  4. Step 4: Simplify right side
    28,195.24x = 607,788,564.83
  5. Step 5: Solve for x
    x = 607,788,564.83/28,195.24
  6. Step 6: Final answer
    x = 21,556.42

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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.