Home / 31,258.16-43,137.28-17,111

Finding the Fourth Proportional to 31,258.16, 43,137.28 and 17,111

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Solution

The fourth proportional to 31,258.16, 43,137.28 and 17,111 is: 23,613.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,258.16 : 43,137.28 = 17,111 : x
  2. Step 2: Convert to fraction form
    31,258.16/43,137.28 = 17,111/x
  3. Step 3: Cross multiply
    31,258.16x = 43,137.28 × 17,111
  4. Step 4: Simplify right side
    31,258.16x = 738,121,998.08
  5. Step 5: Solve for x
    x = 738,121,998.08/31,258.16
  6. Step 6: Final answer
    x = 23,613.74

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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.