Home / 31,877.82-47,816.73-9,691.38

Finding the Fourth Proportional to 31,877.82, 47,816.73 and 9,691.38

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Solution

The fourth proportional to 31,877.82, 47,816.73 and 9,691.38 is: 14,537.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,877.82 : 47,816.73 = 9,691.38 : x
  2. Step 2: Convert to fraction form
    31,877.82/47,816.73 = 9,691.38/x
  3. Step 3: Cross multiply
    31,877.82x = 47,816.73 × 9,691.38
  4. Step 4: Simplify right side
    31,877.82x = 463,410,100.79
  5. Step 5: Solve for x
    x = 463,410,100.79/31,877.82
  6. Step 6: Final answer
    x = 14,537.07

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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.