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Finding the Fourth Proportional to 35,473.82, 48,958.30 and 20,371.20

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Solution

The fourth proportional to 35,473.82, 48,958.30 and 20,371.20 is: 28,114.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,473.82 : 48,958.30 = 20,371.20 : x
  2. Step 2: Convert to fraction form
    35,473.82/48,958.30 = 20,371.20/x
  3. Step 3: Cross multiply
    35,473.82x = 48,958.30 × 20,371.20
  4. Step 4: Simplify right side
    35,473.82x = 997,339,320.96
  5. Step 5: Solve for x
    x = 997,339,320.96/35,473.82
  6. Step 6: Final answer
    x = 28,114.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.