Home / 27,805.67-38,375.52-15,866.27

Finding the Fourth Proportional to 27,805.67, 38,375.52 and 15,866.27

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Solution

The fourth proportional to 27,805.67, 38,375.52 and 15,866.27 is: 21,897.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,805.67 : 38,375.52 = 15,866.27 : x
  2. Step 2: Convert to fraction form
    27,805.67/38,375.52 = 15,866.27/x
  3. Step 3: Cross multiply
    27,805.67x = 38,375.52 × 15,866.27
  4. Step 4: Simplify right side
    27,805.67x = 608,876,361.71
  5. Step 5: Solve for x
    x = 608,876,361.71/27,805.67
  6. Step 6: Final answer
    x = 21,897.56

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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.