Home / 27,898.58-38,552.82-21,172.34

Finding the Fourth Proportional to 27,898.58, 38,552.82 and 21,172.34

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Solution

The fourth proportional to 27,898.58, 38,552.82 and 21,172.34 is: 29,257.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,898.58 : 38,552.82 = 21,172.34 : x
  2. Step 2: Convert to fraction form
    27,898.58/38,552.82 = 21,172.34/x
  3. Step 3: Cross multiply
    27,898.58x = 38,552.82 × 21,172.34
  4. Step 4: Simplify right side
    27,898.58x = 816,253,413.00
  5. Step 5: Solve for x
    x = 816,253,413.00/27,898.58
  6. Step 6: Final answer
    x = 29,257.88

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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.