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Finding the Fourth Proportional to 30,043.02, 45,072.48 and 8,982.20

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Solution

The fourth proportional to 30,043.02, 45,072.48 and 8,982.20 is: 13,475.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,043.02 : 45,072.48 = 8,982.20 : x
  2. Step 2: Convert to fraction form
    30,043.02/45,072.48 = 8,982.20/x
  3. Step 3: Cross multiply
    30,043.02x = 45,072.48 × 8,982.20
  4. Step 4: Simplify right side
    30,043.02x = 404,850,029.86
  5. Step 5: Solve for x
    x = 404,850,029.86/30,043.02
  6. Step 6: Final answer
    x = 13,475.68

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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.