Home / 48,198.62-72,295.80-13,138.28

Finding the Fourth Proportional to 48,198.62, 72,295.80 and 13,138.28

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Solution

The fourth proportional to 48,198.62, 72,295.80 and 13,138.28 is: 19,706.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,198.62 : 72,295.80 = 13,138.28 : x
  2. Step 2: Convert to fraction form
    48,198.62/72,295.80 = 13,138.28/x
  3. Step 3: Cross multiply
    48,198.62x = 72,295.80 × 13,138.28
  4. Step 4: Simplify right side
    48,198.62x = 949,842,463.22
  5. Step 5: Solve for x
    x = 949,842,463.22/48,198.62
  6. Step 6: Final answer
    x = 19,706.84

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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.