Home / 31,382.88-43,308.48-17,235.36

Finding the Fourth Proportional to 31,382.88, 43,308.48 and 17,235.36

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Solution

The fourth proportional to 31,382.88, 43,308.48 and 17,235.36 is: 23,784.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,382.88 : 43,308.48 = 17,235.36 : x
  2. Step 2: Convert to fraction form
    31,382.88/43,308.48 = 17,235.36/x
  3. Step 3: Cross multiply
    31,382.88x = 43,308.48 × 17,235.36
  4. Step 4: Simplify right side
    31,382.88x = 746,437,243.85
  5. Step 5: Solve for x
    x = 746,437,243.85/31,382.88
  6. Step 6: Final answer
    x = 23,784.85

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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.