Home / 31,390.44-43,319.10-17,243.58

Finding the Fourth Proportional to 31,390.44, 43,319.10 and 17,243.58

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Solution

The fourth proportional to 31,390.44, 43,319.10 and 17,243.58 is: 23,796.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,390.44 : 43,319.10 = 17,243.58 : x
  2. Step 2: Convert to fraction form
    31,390.44/43,319.10 = 17,243.58/x
  3. Step 3: Cross multiply
    31,390.44x = 43,319.10 × 17,243.58
  4. Step 4: Simplify right side
    31,390.44x = 746,976,366.38
  5. Step 5: Solve for x
    x = 746,976,366.38/31,390.44
  6. Step 6: Final answer
    x = 23,796.30

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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.