Home / 31,305.49-43,201.48-16,965.73

Finding the Fourth Proportional to 31,305.49, 43,201.48 and 16,965.73

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Solution

The fourth proportional to 31,305.49, 43,201.48 and 16,965.73 is: 23,412.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,305.49 : 43,201.48 = 16,965.73 : x
  2. Step 2: Convert to fraction form
    31,305.49/43,201.48 = 16,965.73/x
  3. Step 3: Cross multiply
    31,305.49x = 43,201.48 × 16,965.73
  4. Step 4: Simplify right side
    31,305.49x = 732,944,519.46
  5. Step 5: Solve for x
    x = 732,944,519.46/31,305.49
  6. Step 6: Final answer
    x = 23,412.65

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Double scale
Find fourth proportional to 31,306.49, 43,202.86 and 16,966.73
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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.