Home / 28,627.09-39,505.41-15,882.25

Finding the Fourth Proportional to 28,627.09, 39,505.41 and 15,882.25

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Solution

The fourth proportional to 28,627.09, 39,505.41 and 15,882.25 is: 21,917.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,627.09 : 39,505.41 = 15,882.25 : x
  2. Step 2: Convert to fraction form
    28,627.09/39,505.41 = 15,882.25/x
  3. Step 3: Cross multiply
    28,627.09x = 39,505.41 × 15,882.25
  4. Step 4: Simplify right side
    28,627.09x = 627,434,797.97
  5. Step 5: Solve for x
    x = 627,434,797.97/28,627.09
  6. Step 6: Final answer
    x = 21,917.52

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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.