Home / 18,869.37-28,202.39-16,478.70

Finding the Fourth Proportional to 18,869.37, 28,202.39 and 16,478.70

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Solution

The fourth proportional to 18,869.37, 28,202.39 and 16,478.70 is: 24,629.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,869.37 : 28,202.39 = 16,478.70 : x
  2. Step 2: Convert to fraction form
    18,869.37/28,202.39 = 16,478.70/x
  3. Step 3: Cross multiply
    18,869.37x = 28,202.39 × 16,478.70
  4. Step 4: Simplify right side
    18,869.37x = 464,738,819.21
  5. Step 5: Solve for x
    x = 464,738,819.21/18,869.37
  6. Step 6: Final answer
    x = 24,629.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.