Home / 31,976.96-47,965.44-13,505.28

Finding the Fourth Proportional to 31,976.96, 47,965.44 and 13,505.28

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Solution

The fourth proportional to 31,976.96, 47,965.44 and 13,505.28 is: 20,257.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,976.96 : 47,965.44 = 13,505.28 : x
  2. Step 2: Convert to fraction form
    31,976.96/47,965.44 = 13,505.28/x
  3. Step 3: Cross multiply
    31,976.96x = 47,965.44 × 13,505.28
  4. Step 4: Simplify right side
    31,976.96x = 647,786,697.52
  5. Step 5: Solve for x
    x = 647,786,697.52/31,976.96
  6. Step 6: Final answer
    x = 20,257.92

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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.