Home / 31,800.76-47,708.26-10,740.04

Finding the Fourth Proportional to 31,800.76, 47,708.26 and 10,740.04

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Solution

The fourth proportional to 31,800.76, 47,708.26 and 10,740.04 is: 16,112.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,800.76 : 47,708.26 = 10,740.04 : x
  2. Step 2: Convert to fraction form
    31,800.76/47,708.26 = 10,740.04/x
  3. Step 3: Cross multiply
    31,800.76x = 47,708.26 × 10,740.04
  4. Step 4: Simplify right side
    31,800.76x = 512,388,620.73
  5. Step 5: Solve for x
    x = 512,388,620.73/31,800.76
  6. Step 6: Final answer
    x = 16,112.46

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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.