Home / 31,129.56-46,693.13-8,942.85

Finding the Fourth Proportional to 31,129.56, 46,693.13 and 8,942.85

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Solution

The fourth proportional to 31,129.56, 46,693.13 and 8,942.85 is: 13,413.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,129.56 : 46,693.13 = 8,942.85 : x
  2. Step 2: Convert to fraction form
    31,129.56/46,693.13 = 8,942.85/x
  3. Step 3: Cross multiply
    31,129.56x = 46,693.13 × 8,942.85
  4. Step 4: Simplify right side
    31,129.56x = 417,569,612.91
  5. Step 5: Solve for x
    x = 417,569,612.91/31,129.56
  6. Step 6: Final answer
    x = 13,413.93

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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.