Home / 31,181.58-46,772.40-8,691.36

Finding the Fourth Proportional to 31,181.58, 46,772.40 and 8,691.36

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Solution

The fourth proportional to 31,181.58, 46,772.40 and 8,691.36 is: 13,037.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,181.58 : 46,772.40 = 8,691.36 : x
  2. Step 2: Convert to fraction form
    31,181.58/46,772.40 = 8,691.36/x
  3. Step 3: Cross multiply
    31,181.58x = 46,772.40 × 8,691.36
  4. Step 4: Simplify right side
    31,181.58x = 406,515,766.46
  5. Step 5: Solve for x
    x = 406,515,766.46/31,181.58
  6. Step 6: Final answer
    x = 13,037.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.