Home / 27,375.81-37,781.05-15,441.47

Finding the Fourth Proportional to 27,375.81, 37,781.05 and 15,441.47

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Solution

The fourth proportional to 27,375.81, 37,781.05 and 15,441.47 is: 21,310.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,375.81 : 37,781.05 = 15,441.47 : x
  2. Step 2: Convert to fraction form
    27,375.81/37,781.05 = 15,441.47/x
  3. Step 3: Cross multiply
    27,375.81x = 37,781.05 × 15,441.47
  4. Step 4: Simplify right side
    27,375.81x = 583,394,950.14
  5. Step 5: Solve for x
    x = 583,394,950.14/27,375.81
  6. Step 6: Final answer
    x = 21,310.60

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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.