Home / 30,617.60-45,874.56-28,336.64

Finding the Fourth Proportional to 30,617.60, 45,874.56 and 28,336.64

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Solution

The fourth proportional to 30,617.60, 45,874.56 and 28,336.64 is: 42,456.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,617.60 : 45,874.56 = 28,336.64 : x
  2. Step 2: Convert to fraction form
    30,617.60/45,874.56 = 28,336.64/x
  3. Step 3: Cross multiply
    30,617.60x = 45,874.56 × 28,336.64
  4. Step 4: Simplify right side
    30,617.60x = 1,299,930,891.88
  5. Step 5: Solve for x
    x = 1,299,930,891.88/30,617.60
  6. Step 6: Final answer
    x = 42,456.98

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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.