Home / 28,748.24-43,121.82-15,683.78

Finding the Fourth Proportional to 28,748.24, 43,121.82 and 15,683.78

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Solution

The fourth proportional to 28,748.24, 43,121.82 and 15,683.78 is: 23,525.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,748.24 : 43,121.82 = 15,683.78 : x
  2. Step 2: Convert to fraction form
    28,748.24/43,121.82 = 15,683.78/x
  3. Step 3: Cross multiply
    28,748.24x = 43,121.82 × 15,683.78
  4. Step 4: Simplify right side
    28,748.24x = 676,313,138.08
  5. Step 5: Solve for x
    x = 676,313,138.08/28,748.24
  6. Step 6: Final answer
    x = 23,525.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.