Home / 31,345.61-43,258.07-17,198.87

Finding the Fourth Proportional to 31,345.61, 43,258.07 and 17,198.87

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Solution

The fourth proportional to 31,345.61, 43,258.07 and 17,198.87 is: 23,735.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,345.61 : 43,258.07 = 17,198.87 : x
  2. Step 2: Convert to fraction form
    31,345.61/43,258.07 = 17,198.87/x
  3. Step 3: Cross multiply
    31,345.61x = 43,258.07 × 17,198.87
  4. Step 4: Simplify right side
    31,345.61x = 743,989,836.39
  5. Step 5: Solve for x
    x = 743,989,836.39/31,345.61
  6. Step 6: Final answer
    x = 23,735.06

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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.