Home / 31,456.04-47,183.70-12,730.98

Finding the Fourth Proportional to 31,456.04, 47,183.70 and 12,730.98

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Solution

The fourth proportional to 31,456.04, 47,183.70 and 12,730.98 is: 19,096.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,456.04 : 47,183.70 = 12,730.98 : x
  2. Step 2: Convert to fraction form
    31,456.04/47,183.70 = 12,730.98/x
  3. Step 3: Cross multiply
    31,456.04x = 47,183.70 × 12,730.98
  4. Step 4: Simplify right side
    31,456.04x = 600,694,741.03
  5. Step 5: Solve for x
    x = 600,694,741.03/31,456.04
  6. Step 6: Final answer
    x = 19,096.33

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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.