Home / 28,196.64-42,249.20-16,480.80

Finding the Fourth Proportional to 28,196.64, 42,249.20 and 16,480.80

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Solution

The fourth proportional to 28,196.64, 42,249.20 and 16,480.80 is: 24,694.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,196.64 : 42,249.20 = 16,480.80 : x
  2. Step 2: Convert to fraction form
    28,196.64/42,249.20 = 16,480.80/x
  3. Step 3: Cross multiply
    28,196.64x = 42,249.20 × 16,480.80
  4. Step 4: Simplify right side
    28,196.64x = 696,300,615.36
  5. Step 5: Solve for x
    x = 696,300,615.36/28,196.64
  6. Step 6: Final answer
    x = 24,694.45

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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.