Home / 31,165.57-43,008.40-17,018.31

Finding the Fourth Proportional to 31,165.57, 43,008.40 and 17,018.31

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Solution

The fourth proportional to 31,165.57, 43,008.40 and 17,018.31 is: 23,485.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,165.57 : 43,008.40 = 17,018.31 : x
  2. Step 2: Convert to fraction form
    31,165.57/43,008.40 = 17,018.31/x
  3. Step 3: Cross multiply
    31,165.57x = 43,008.40 × 17,018.31
  4. Step 4: Simplify right side
    31,165.57x = 731,930,283.80
  5. Step 5: Solve for x
    x = 731,930,283.80/31,165.57
  6. Step 6: Final answer
    x = 23,485.22

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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.