Home / 31,469.80-47,204.82-12,750.19

Finding the Fourth Proportional to 31,469.80, 47,204.82 and 12,750.19

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Solution

The fourth proportional to 31,469.80, 47,204.82 and 12,750.19 is: 19,125.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,469.80 : 47,204.82 = 12,750.19 : x
  2. Step 2: Convert to fraction form
    31,469.80/47,204.82 = 12,750.19/x
  3. Step 3: Cross multiply
    31,469.80x = 47,204.82 × 12,750.19
  4. Step 4: Simplify right side
    31,469.80x = 601,870,423.92
  5. Step 5: Solve for x
    x = 601,870,423.92/31,469.80
  6. Step 6: Final answer
    x = 19,125.33

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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.