Home / 47,479.85-71,186.97-20,813.03

Finding the Fourth Proportional to 47,479.85, 71,186.97 and 20,813.03

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Solution

The fourth proportional to 47,479.85, 71,186.97 and 20,813.03 is: 31,205.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,479.85 : 71,186.97 = 20,813.03 : x
  2. Step 2: Convert to fraction form
    47,479.85/71,186.97 = 20,813.03/x
  3. Step 3: Cross multiply
    47,479.85x = 71,186.97 × 20,813.03
  4. Step 4: Simplify right side
    47,479.85x = 1,481,616,772.22
  5. Step 5: Solve for x
    x = 1,481,616,772.22/47,479.85
  6. Step 6: Final answer
    x = 31,205.17

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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.