Home / 31,418.06-43,356.96-17,270.90

Finding the Fourth Proportional to 31,418.06, 43,356.96 and 17,270.90

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Solution

The fourth proportional to 31,418.06, 43,356.96 and 17,270.90 is: 23,833.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,418.06 : 43,356.96 = 17,270.90 : x
  2. Step 2: Convert to fraction form
    31,418.06/43,356.96 = 17,270.90/x
  3. Step 3: Cross multiply
    31,418.06x = 43,356.96 × 17,270.90
  4. Step 4: Simplify right side
    31,418.06x = 748,813,503.68
  5. Step 5: Solve for x
    x = 748,813,503.68/31,418.06
  6. Step 6: Final answer
    x = 23,833.86

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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.