Home / 31,530.62-43,512.56-17,383.98

Finding the Fourth Proportional to 31,530.62, 43,512.56 and 17,383.98

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Solution

The fourth proportional to 31,530.62, 43,512.56 and 17,383.98 is: 23,990.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,530.62 : 43,512.56 = 17,383.98 : x
  2. Step 2: Convert to fraction form
    31,530.62/43,512.56 = 17,383.98/x
  3. Step 3: Cross multiply
    31,530.62x = 43,512.56 × 17,383.98
  4. Step 4: Simplify right side
    31,530.62x = 756,421,472.79
  5. Step 5: Solve for x
    x = 756,421,472.79/31,530.62
  6. Step 6: Final answer
    x = 23,990.06

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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.