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Finding the Fourth Proportional to 35,471.39, 48,952.94 and 21,679.64

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Solution

The fourth proportional to 35,471.39, 48,952.94 and 21,679.64 is: 29,919.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,471.39 : 48,952.94 = 21,679.64 : x
  2. Step 2: Convert to fraction form
    35,471.39/48,952.94 = 21,679.64/x
  3. Step 3: Cross multiply
    35,471.39x = 48,952.94 × 21,679.64
  4. Step 4: Simplify right side
    35,471.39x = 1,061,282,116.14
  5. Step 5: Solve for x
    x = 1,061,282,116.14/35,471.39
  6. Step 6: Final answer
    x = 29,919.38

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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.