Home / 31,129.07-46,687.32-11,400.89

Finding the Fourth Proportional to 31,129.07, 46,687.32 and 11,400.89

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Solution

The fourth proportional to 31,129.07, 46,687.32 and 11,400.89 is: 17,099.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,129.07 : 46,687.32 = 11,400.89 : x
  2. Step 2: Convert to fraction form
    31,129.07/46,687.32 = 11,400.89/x
  3. Step 3: Cross multiply
    31,129.07x = 46,687.32 × 11,400.89
  4. Step 4: Simplify right side
    31,129.07x = 532,276,766.28
  5. Step 5: Solve for x
    x = 532,276,766.28/31,129.07
  6. Step 6: Final answer
    x = 17,099.03

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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.