Home / 47,936.48-71,920.67-21,278.77

Finding the Fourth Proportional to 47,936.48, 71,920.67 and 21,278.77

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Solution

The fourth proportional to 47,936.48, 71,920.67 and 21,278.77 is: 31,925.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,936.48 : 71,920.67 = 21,278.77 : x
  2. Step 2: Convert to fraction form
    47,936.48/71,920.67 = 21,278.77/x
  3. Step 3: Cross multiply
    47,936.48x = 71,920.67 × 21,278.77
  4. Step 4: Simplify right side
    47,936.48x = 1,530,383,378.68
  5. Step 5: Solve for x
    x = 1,530,383,378.68/47,936.48
  6. Step 6: Final answer
    x = 31,925.24

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1.5x scale

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.