Home / 31,371.30-43,289.64-18,623.52

Finding the Fourth Proportional to 31,371.30, 43,289.64 and 18,623.52

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Solution

The fourth proportional to 31,371.30, 43,289.64 and 18,623.52 is: 25,698.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,371.30 : 43,289.64 = 18,623.52 : x
  2. Step 2: Convert to fraction form
    31,371.30/43,289.64 = 18,623.52/x
  3. Step 3: Cross multiply
    31,371.30x = 43,289.64 × 18,623.52
  4. Step 4: Simplify right side
    31,371.30x = 806,205,476.33
  5. Step 5: Solve for x
    x = 806,205,476.33/31,371.30
  6. Step 6: Final answer
    x = 25,698.82

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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.