Home / 31,193.24-43,078.13-19,867.82

Finding the Fourth Proportional to 31,193.24, 43,078.13 and 19,867.82

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Solution

The fourth proportional to 31,193.24, 43,078.13 and 19,867.82 is: 27,437.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,193.24 : 43,078.13 = 19,867.82 : x
  2. Step 2: Convert to fraction form
    31,193.24/43,078.13 = 19,867.82/x
  3. Step 3: Cross multiply
    31,193.24x = 43,078.13 × 19,867.82
  4. Step 4: Simplify right side
    31,193.24x = 855,868,292.55
  5. Step 5: Solve for x
    x = 855,868,292.55/31,193.24
  6. Step 6: Final answer
    x = 27,437.63

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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.