Home / 31,293.66-43,185.78-17,147.28

Finding the Fourth Proportional to 31,293.66, 43,185.78 and 17,147.28

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Solution

The fourth proportional to 31,293.66, 43,185.78 and 17,147.28 is: 23,663.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,293.66 : 43,185.78 = 17,147.28 : x
  2. Step 2: Convert to fraction form
    31,293.66/43,185.78 = 17,147.28/x
  3. Step 3: Cross multiply
    31,293.66x = 43,185.78 × 17,147.28
  4. Step 4: Simplify right side
    31,293.66x = 740,518,661.68
  5. Step 5: Solve for x
    x = 740,518,661.68/31,293.66
  6. Step 6: Final answer
    x = 23,663.54

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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.