Home / 31,654.64-43,687.68-18,228.08

Finding the Fourth Proportional to 31,654.64, 43,687.68 and 18,228.08

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Solution

The fourth proportional to 31,654.64, 43,687.68 and 18,228.08 is: 25,157.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,654.64 : 43,687.68 = 18,228.08 : x
  2. Step 2: Convert to fraction form
    31,654.64/43,687.68 = 18,228.08/x
  3. Step 3: Cross multiply
    31,654.64x = 43,687.68 × 18,228.08
  4. Step 4: Simplify right side
    31,654.64x = 796,342,526.05
  5. Step 5: Solve for x
    x = 796,342,526.05/31,654.64
  6. Step 6: Final answer
    x = 25,157.21

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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.