Home / 35,245.68-48,639.78-21,816.96

Finding the Fourth Proportional to 35,245.68, 48,639.78 and 21,816.96

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Solution

The fourth proportional to 35,245.68, 48,639.78 and 21,816.96 is: 30,107.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,245.68 : 48,639.78 = 21,816.96 : x
  2. Step 2: Convert to fraction form
    35,245.68/48,639.78 = 21,816.96/x
  3. Step 3: Cross multiply
    35,245.68x = 48,639.78 × 21,816.96
  4. Step 4: Simplify right side
    35,245.68x = 1,061,172,134.67
  5. Step 5: Solve for x
    x = 1,061,172,134.67/35,245.68
  6. Step 6: Final answer
    x = 30,107.86

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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.