Home / 18,578.30-25,636.30-15,049.94

Finding the Fourth Proportional to 18,578.30, 25,636.30 and 15,049.94

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Solution

The fourth proportional to 18,578.30, 25,636.30 and 15,049.94 is: 20,767.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,578.30 : 25,636.30 = 15,049.94 : x
  2. Step 2: Convert to fraction form
    18,578.30/25,636.30 = 15,049.94/x
  3. Step 3: Cross multiply
    18,578.30x = 25,636.30 × 15,049.94
  4. Step 4: Simplify right side
    18,578.30x = 385,824,611.02
  5. Step 5: Solve for x
    x = 385,824,611.02/18,578.30
  6. Step 6: Final answer
    x = 20,767.49

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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.