Home / 31,780.68-43,857.06-17,636.04

Finding the Fourth Proportional to 31,780.68, 43,857.06 and 17,636.04

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Solution

The fourth proportional to 31,780.68, 43,857.06 and 17,636.04 is: 24,337.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,780.68 : 43,857.06 = 17,636.04 : x
  2. Step 2: Convert to fraction form
    31,780.68/43,857.06 = 17,636.04/x
  3. Step 3: Cross multiply
    31,780.68x = 43,857.06 × 17,636.04
  4. Step 4: Simplify right side
    31,780.68x = 773,464,864.44
  5. Step 5: Solve for x
    x = 773,464,864.44/31,780.68
  6. Step 6: Final answer
    x = 24,337.58

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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.