Home / 31,493.92-47,208.48-13,972

Finding the Fourth Proportional to 31,493.92, 47,208.48 and 13,972

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Solution

The fourth proportional to 31,493.92, 47,208.48 and 13,972 is: 20,943.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,493.92 : 47,208.48 = 13,972 : x
  2. Step 2: Convert to fraction form
    31,493.92/47,208.48 = 13,972/x
  3. Step 3: Cross multiply
    31,493.92x = 47,208.48 × 13,972
  4. Step 4: Simplify right side
    31,493.92x = 659,596,882.56
  5. Step 5: Solve for x
    x = 659,596,882.56/31,493.92
  6. Step 6: Final answer
    x = 20,943.63

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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.