Home / 31,168.26-43,021.13-18,423.59

Finding the Fourth Proportional to 31,168.26, 43,021.13 and 18,423.59

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Solution

The fourth proportional to 31,168.26, 43,021.13 and 18,423.59 is: 25,429.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,168.26 : 43,021.13 = 18,423.59 : x
  2. Step 2: Convert to fraction form
    31,168.26/43,021.13 = 18,423.59/x
  3. Step 3: Cross multiply
    31,168.26x = 43,021.13 × 18,423.59
  4. Step 4: Simplify right side
    31,168.26x = 792,603,353.23
  5. Step 5: Solve for x
    x = 792,603,353.23/31,168.26
  6. Step 6: Final answer
    x = 25,429.82

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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.