Home / 30,967.31-46,449.86-8,780.60

Finding the Fourth Proportional to 30,967.31, 46,449.86 and 8,780.60

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Solution

The fourth proportional to 30,967.31, 46,449.86 and 8,780.60 is: 13,170.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,967.31 : 46,449.86 = 8,780.60 : x
  2. Step 2: Convert to fraction form
    30,967.31/46,449.86 = 8,780.60/x
  3. Step 3: Cross multiply
    30,967.31x = 46,449.86 × 8,780.60
  4. Step 4: Simplify right side
    30,967.31x = 407,857,712.94
  5. Step 5: Solve for x
    x = 407,857,712.94/30,967.31
  6. Step 6: Final answer
    x = 13,170.59

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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.