Home / 31,531.26-43,513.12-17,385

Finding the Fourth Proportional to 31,531.26, 43,513.12 and 17,385

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Solution

The fourth proportional to 31,531.26, 43,513.12 and 17,385 is: 23,991.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,531.26 : 43,513.12 = 17,385 : x
  2. Step 2: Convert to fraction form
    31,531.26/43,513.12 = 17,385/x
  3. Step 3: Cross multiply
    31,531.26x = 43,513.12 × 17,385
  4. Step 4: Simplify right side
    31,531.26x = 756,475,591.20
  5. Step 5: Solve for x
    x = 756,475,591.20/31,531.26
  6. Step 6: Final answer
    x = 23,991.29

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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.