Home / 31,786.08-43,862.76-17,638.92

Finding the Fourth Proportional to 31,786.08, 43,862.76 and 17,638.92

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Solution

The fourth proportional to 31,786.08, 43,862.76 and 17,638.92 is: 24,340.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,786.08 : 43,862.76 = 17,638.92 : x
  2. Step 2: Convert to fraction form
    31,786.08/43,862.76 = 17,638.92/x
  3. Step 3: Cross multiply
    31,786.08x = 43,862.76 × 17,638.92
  4. Step 4: Simplify right side
    31,786.08x = 773,691,714.62
  5. Step 5: Solve for x
    x = 773,691,714.62/31,786.08
  6. Step 6: Final answer
    x = 24,340.58

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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.