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Finding the Fourth Proportional to 30,383.76, 45,590.22 and 10,671.60

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Solution

The fourth proportional to 30,383.76, 45,590.22 and 10,671.60 is: 16,012.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,383.76 : 45,590.22 = 10,671.60 : x
  2. Step 2: Convert to fraction form
    30,383.76/45,590.22 = 10,671.60/x
  3. Step 3: Cross multiply
    30,383.76x = 45,590.22 × 10,671.60
  4. Step 4: Simplify right side
    30,383.76x = 486,520,591.75
  5. Step 5: Solve for x
    x = 486,520,591.75/30,383.76
  6. Step 6: Final answer
    x = 16,012.52

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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.