Home / 31,812.03-47,644.20-30,704.90

Finding the Fourth Proportional to 31,812.03, 47,644.20 and 30,704.90

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Solution

The fourth proportional to 31,812.03, 47,644.20 and 30,704.90 is: 45,986.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,812.03 : 47,644.20 = 30,704.90 : x
  2. Step 2: Convert to fraction form
    31,812.03/47,644.20 = 30,704.90/x
  3. Step 3: Cross multiply
    31,812.03x = 47,644.20 × 30,704.90
  4. Step 4: Simplify right side
    31,812.03x = 1,462,910,158.36
  5. Step 5: Solve for x
    x = 1,462,910,158.36/31,812.03
  6. Step 6: Final answer
    x = 45,986.07

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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.