Home / 31,434.80-43,379.68-17,287.84

Finding the Fourth Proportional to 31,434.80, 43,379.68 and 17,287.84

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Solution

The fourth proportional to 31,434.80, 43,379.68 and 17,287.84 is: 23,857.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,434.80 : 43,379.68 = 17,287.84 : x
  2. Step 2: Convert to fraction form
    31,434.80/43,379.68 = 17,287.84/x
  3. Step 3: Cross multiply
    31,434.80x = 43,379.68 × 17,287.84
  4. Step 4: Simplify right side
    31,434.80x = 749,940,967.09
  5. Step 5: Solve for x
    x = 749,940,967.09/31,434.80
  6. Step 6: Final answer
    x = 23,857.03

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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.