Home / 31,530.42-43,511.09-17,383.28

Finding the Fourth Proportional to 31,530.42, 43,511.09 and 17,383.28

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Solution

The fourth proportional to 31,530.42, 43,511.09 and 17,383.28 is: 23,988.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,530.42 : 43,511.09 = 17,383.28 : x
  2. Step 2: Convert to fraction form
    31,530.42/43,511.09 = 17,383.28/x
  3. Step 3: Cross multiply
    31,530.42x = 43,511.09 × 17,383.28
  4. Step 4: Simplify right side
    31,530.42x = 756,365,156.10
  5. Step 5: Solve for x
    x = 756,365,156.10/31,530.42
  6. Step 6: Final answer
    x = 23,988.43

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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.