Home / 31,028.87-46,543.41-8,539.86

Finding the Fourth Proportional to 31,028.87, 46,543.41 and 8,539.86

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Solution

The fourth proportional to 31,028.87, 46,543.41 and 8,539.86 is: 12,809.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,028.87 : 46,543.41 = 8,539.86 : x
  2. Step 2: Convert to fraction form
    31,028.87/46,543.41 = 8,539.86/x
  3. Step 3: Cross multiply
    31,028.87x = 46,543.41 × 8,539.86
  4. Step 4: Simplify right side
    31,028.87x = 397,473,987.15
  5. Step 5: Solve for x
    x = 397,473,987.15/31,028.87
  6. Step 6: Final answer
    x = 12,809.81

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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.