Home / 31,292.16-43,183.71-17,145.78

Finding the Fourth Proportional to 31,292.16, 43,183.71 and 17,145.78

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Solution

The fourth proportional to 31,292.16, 43,183.71 and 17,145.78 is: 23,661.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,292.16 : 43,183.71 = 17,145.78 : x
  2. Step 2: Convert to fraction form
    31,292.16/43,183.71 = 17,145.78/x
  3. Step 3: Cross multiply
    31,292.16x = 43,183.71 × 17,145.78
  4. Step 4: Simplify right side
    31,292.16x = 740,418,391.24
  5. Step 5: Solve for x
    x = 740,418,391.24/31,292.16
  6. Step 6: Final answer
    x = 23,661.47

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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.