Home / 31,283.45-43,171.17-17,136.30

Finding the Fourth Proportional to 31,283.45, 43,171.17 and 17,136.30

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Solution

The fourth proportional to 31,283.45, 43,171.17 and 17,136.30 is: 23,648.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,283.45 : 43,171.17 = 17,136.30 : x
  2. Step 2: Convert to fraction form
    31,283.45/43,171.17 = 17,136.30/x
  3. Step 3: Cross multiply
    31,283.45x = 43,171.17 × 17,136.30
  4. Step 4: Simplify right side
    31,283.45x = 739,794,120.47
  5. Step 5: Solve for x
    x = 739,794,120.47/31,283.45
  6. Step 6: Final answer
    x = 23,648.10

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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.