Home / 28,049.82-38,711.48-15,474.56

Finding the Fourth Proportional to 28,049.82, 38,711.48 and 15,474.56

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Solution

The fourth proportional to 28,049.82, 38,711.48 and 15,474.56 is: 21,356.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,049.82 : 38,711.48 = 15,474.56 : x
  2. Step 2: Convert to fraction form
    28,049.82/38,711.48 = 15,474.56/x
  3. Step 3: Cross multiply
    28,049.82x = 38,711.48 × 15,474.56
  4. Step 4: Simplify right side
    28,049.82x = 599,043,119.95
  5. Step 5: Solve for x
    x = 599,043,119.95/28,049.82
  6. Step 6: Final answer
    x = 21,356.40

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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.