Home / 31,778.34-43,848.03-18,170.70

Finding the Fourth Proportional to 31,778.34, 43,848.03 and 18,170.70

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Solution

The fourth proportional to 31,778.34, 43,848.03 and 18,170.70 is: 25,072.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,778.34 : 43,848.03 = 18,170.70 : x
  2. Step 2: Convert to fraction form
    31,778.34/43,848.03 = 18,170.70/x
  3. Step 3: Cross multiply
    31,778.34x = 43,848.03 × 18,170.70
  4. Step 4: Simplify right side
    31,778.34x = 796,749,398.72
  5. Step 5: Solve for x
    x = 796,749,398.72/31,778.34
  6. Step 6: Final answer
    x = 25,072.09

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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.