Home / 31,896.86-44,027.55-21,821.47

Finding the Fourth Proportional to 31,896.86, 44,027.55 and 21,821.47

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Solution

The fourth proportional to 31,896.86, 44,027.55 and 21,821.47 is: 30,120.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,896.86 : 44,027.55 = 21,821.47 : x
  2. Step 2: Convert to fraction form
    31,896.86/44,027.55 = 21,821.47/x
  3. Step 3: Cross multiply
    31,896.86x = 44,027.55 × 21,821.47
  4. Step 4: Simplify right side
    31,896.86x = 960,745,751.43
  5. Step 5: Solve for x
    x = 960,745,751.43/31,896.86
  6. Step 6: Final answer
    x = 30,120.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.