Home / 31,384.78-47,083.66-9,198.88

Finding the Fourth Proportional to 31,384.78, 47,083.66 and 9,198.88

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Solution

The fourth proportional to 31,384.78, 47,083.66 and 9,198.88 is: 13,800.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,384.78 : 47,083.66 = 9,198.88 : x
  2. Step 2: Convert to fraction form
    31,384.78/47,083.66 = 9,198.88/x
  3. Step 3: Cross multiply
    31,384.78x = 47,083.66 × 9,198.88
  4. Step 4: Simplify right side
    31,384.78x = 433,116,938.30
  5. Step 5: Solve for x
    x = 433,116,938.30/31,384.78
  6. Step 6: Final answer
    x = 13,800.22

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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.