Home / 31,308.30-43,205.19-17,161.11

Finding the Fourth Proportional to 31,308.30, 43,205.19 and 17,161.11

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Solution

The fourth proportional to 31,308.30, 43,205.19 and 17,161.11 is: 23,682.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,308.30 : 43,205.19 = 17,161.11 : x
  2. Step 2: Convert to fraction form
    31,308.30/43,205.19 = 17,161.11/x
  3. Step 3: Cross multiply
    31,308.30x = 43,205.19 × 17,161.11
  4. Step 4: Simplify right side
    31,308.30x = 741,449,018.16
  5. Step 5: Solve for x
    x = 741,449,018.16/31,308.30
  6. Step 6: Final answer
    x = 23,682.19

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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.