Home / 31,877.96-47,816.87-15,187.37

Finding the Fourth Proportional to 31,877.96, 47,816.87 and 15,187.37

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Solution

The fourth proportional to 31,877.96, 47,816.87 and 15,187.37 is: 22,781.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,877.96 : 47,816.87 = 15,187.37 : x
  2. Step 2: Convert to fraction form
    31,877.96/47,816.87 = 15,187.37/x
  3. Step 3: Cross multiply
    31,877.96x = 47,816.87 × 15,187.37
  4. Step 4: Simplify right side
    31,877.96x = 726,212,181.91
  5. Step 5: Solve for x
    x = 726,212,181.91/31,877.96
  6. Step 6: Final answer
    x = 22,781.02

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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.