Home / 31,434.15-43,378.26-17,286.99

Finding the Fourth Proportional to 31,434.15, 43,378.26 and 17,286.99

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Solution

The fourth proportional to 31,434.15, 43,378.26 and 17,286.99 is: 23,855.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,434.15 : 43,378.26 = 17,286.99 : x
  2. Step 2: Convert to fraction form
    31,434.15/43,378.26 = 17,286.99/x
  3. Step 3: Cross multiply
    31,434.15x = 43,378.26 × 17,286.99
  4. Step 4: Simplify right side
    31,434.15x = 749,879,774.33
  5. Step 5: Solve for x
    x = 749,879,774.33/31,434.15
  6. Step 6: Final answer
    x = 23,855.58

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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.