Home / 20,148.98-27,805.61-11,196.27

Finding the Fourth Proportional to 20,148.98, 27,805.61 and 11,196.27

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Solution

The fourth proportional to 20,148.98, 27,805.61 and 11,196.27 is: 15,450.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,148.98 : 27,805.61 = 11,196.27 : x
  2. Step 2: Convert to fraction form
    20,148.98/27,805.61 = 11,196.27/x
  3. Step 3: Cross multiply
    20,148.98x = 27,805.61 × 11,196.27
  4. Step 4: Simplify right side
    20,148.98x = 311,319,061.09
  5. Step 5: Solve for x
    x = 311,319,061.09/20,148.98
  6. Step 6: Final answer
    x = 15,450.86

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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.