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Finding the Fourth Proportional to 30,273.40, 45,410.10 and 8,090.20

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Solution

The fourth proportional to 30,273.40, 45,410.10 and 8,090.20 is: 12,135.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,273.40 : 45,410.10 = 8,090.20 : x
  2. Step 2: Convert to fraction form
    30,273.40/45,410.10 = 8,090.20/x
  3. Step 3: Cross multiply
    30,273.40x = 45,410.10 × 8,090.20
  4. Step 4: Simplify right side
    30,273.40x = 367,376,791.02
  5. Step 5: Solve for x
    x = 367,376,791.02/30,273.40
  6. Step 6: Final answer
    x = 12,135.30

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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.