Home / 31,780.76-43,857.68-17,633.84

Finding the Fourth Proportional to 31,780.76, 43,857.68 and 17,633.84

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Solution

The fourth proportional to 31,780.76, 43,857.68 and 17,633.84 is: 24,334.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,780.76 : 43,857.68 = 17,633.84 : x
  2. Step 2: Convert to fraction form
    31,780.76/43,857.68 = 17,633.84/x
  3. Step 3: Cross multiply
    31,780.76x = 43,857.68 × 17,633.84
  4. Step 4: Simplify right side
    31,780.76x = 773,379,004.43
  5. Step 5: Solve for x
    x = 773,379,004.43/31,780.76
  6. Step 6: Final answer
    x = 24,334.82

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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.