Home / 31,181.86-46,773.20-10,405.36

Finding the Fourth Proportional to 31,181.86, 46,773.20 and 10,405.36

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Solution

The fourth proportional to 31,181.86, 46,773.20 and 10,405.36 is: 15,608.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,181.86 : 46,773.20 = 10,405.36 : x
  2. Step 2: Convert to fraction form
    31,181.86/46,773.20 = 10,405.36/x
  3. Step 3: Cross multiply
    31,181.86x = 46,773.20 × 10,405.36
  4. Step 4: Simplify right side
    31,181.86x = 486,691,984.35
  5. Step 5: Solve for x
    x = 486,691,984.35/31,181.86
  6. Step 6: Final answer
    x = 15,608.18

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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.