Home / 18,712.49-28,037.93-16,783.38

Finding the Fourth Proportional to 18,712.49, 28,037.93 and 16,783.38

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Solution

The fourth proportional to 18,712.49, 28,037.93 and 16,783.38 is: 25,147.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,712.49 : 28,037.93 = 16,783.38 : x
  2. Step 2: Convert to fraction form
    18,712.49/28,037.93 = 16,783.38/x
  3. Step 3: Cross multiply
    18,712.49x = 28,037.93 × 16,783.38
  4. Step 4: Simplify right side
    18,712.49x = 470,571,149.69
  5. Step 5: Solve for x
    x = 470,571,149.69/18,712.49
  6. Step 6: Final answer
    x = 25,147.44

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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.