Home / 28,414.53-39,212.55-15,839.28

Finding the Fourth Proportional to 28,414.53, 39,212.55 and 15,839.28

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Solution

The fourth proportional to 28,414.53, 39,212.55 and 15,839.28 is: 21,858.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,414.53 : 39,212.55 = 15,839.28 : x
  2. Step 2: Convert to fraction form
    28,414.53/39,212.55 = 15,839.28/x
  3. Step 3: Cross multiply
    28,414.53x = 39,212.55 × 15,839.28
  4. Step 4: Simplify right side
    28,414.53x = 621,098,558.96
  5. Step 5: Solve for x
    x = 621,098,558.96/28,414.53
  6. Step 6: Final answer
    x = 21,858.48

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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.