Home / 31,283.09-43,171.23-17,135.03

Finding the Fourth Proportional to 31,283.09, 43,171.23 and 17,135.03

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Solution

The fourth proportional to 31,283.09, 43,171.23 and 17,135.03 is: 23,646.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,283.09 : 43,171.23 = 17,135.03 : x
  2. Step 2: Convert to fraction form
    31,283.09/43,171.23 = 17,135.03/x
  3. Step 3: Cross multiply
    31,283.09x = 43,171.23 × 17,135.03
  4. Step 4: Simplify right side
    31,283.09x = 739,740,321.19
  5. Step 5: Solve for x
    x = 739,740,321.19/31,283.09
  6. Step 6: Final answer
    x = 23,646.65

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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.