Home / 31,644.27-43,667.24-18,213.39

Finding the Fourth Proportional to 31,644.27, 43,667.24 and 18,213.39

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Solution

The fourth proportional to 31,644.27, 43,667.24 and 18,213.39 is: 25,133.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,644.27 : 43,667.24 = 18,213.39 : x
  2. Step 2: Convert to fraction form
    31,644.27/43,667.24 = 18,213.39/x
  3. Step 3: Cross multiply
    31,644.27x = 43,667.24 × 18,213.39
  4. Step 4: Simplify right side
    31,644.27x = 795,328,381.28
  5. Step 5: Solve for x
    x = 795,328,381.28/31,644.27
  6. Step 6: Final answer
    x = 25,133.41

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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.