Home / 47,021.40-70,533.18-11,961.36

Finding the Fourth Proportional to 47,021.40, 70,533.18 and 11,961.36

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Solution

The fourth proportional to 47,021.40, 70,533.18 and 11,961.36 is: 17,942.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,021.40 : 70,533.18 = 11,961.36 : x
  2. Step 2: Convert to fraction form
    47,021.40/70,533.18 = 11,961.36/x
  3. Step 3: Cross multiply
    47,021.40x = 70,533.18 × 11,961.36
  4. Step 4: Simplify right side
    47,021.40x = 843,672,757.92
  5. Step 5: Solve for x
    x = 843,672,757.92/47,021.40
  6. Step 6: Final answer
    x = 17,942.31

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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.