Home / 47,231.28-70,835.56-13,942.36

Finding the Fourth Proportional to 47,231.28, 70,835.56 and 13,942.36

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Solution

The fourth proportional to 47,231.28, 70,835.56 and 13,942.36 is: 20,910.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,231.28 : 70,835.56 = 13,942.36 : x
  2. Step 2: Convert to fraction form
    47,231.28/70,835.56 = 13,942.36/x
  3. Step 3: Cross multiply
    47,231.28x = 70,835.56 × 13,942.36
  4. Step 4: Simplify right side
    47,231.28x = 987,614,878.32
  5. Step 5: Solve for x
    x = 987,614,878.32/47,231.28
  6. Step 6: Final answer
    x = 20,910.19

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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.