Home / 31,108.44-42,930.54-16,961.52

Finding the Fourth Proportional to 31,108.44, 42,930.54 and 16,961.52

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Solution

The fourth proportional to 31,108.44, 42,930.54 and 16,961.52 is: 23,407.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,108.44 : 42,930.54 = 16,961.52 : x
  2. Step 2: Convert to fraction form
    31,108.44/42,930.54 = 16,961.52/x
  3. Step 3: Cross multiply
    31,108.44x = 42,930.54 × 16,961.52
  4. Step 4: Simplify right side
    31,108.44x = 728,167,212.82
  5. Step 5: Solve for x
    x = 728,167,212.82/31,108.44
  6. Step 6: Final answer
    x = 23,407.38

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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.