Home / 31,256.96-46,917.84-20,940.80

Finding the Fourth Proportional to 31,256.96, 46,917.84 and 20,940.80

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Solution

The fourth proportional to 31,256.96, 46,917.84 and 20,940.80 is: 31,432.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,256.96 : 46,917.84 = 20,940.80 : x
  2. Step 2: Convert to fraction form
    31,256.96/46,917.84 = 20,940.80/x
  3. Step 3: Cross multiply
    31,256.96x = 46,917.84 × 20,940.80
  4. Step 4: Simplify right side
    31,256.96x = 982,497,103.87
  5. Step 5: Solve for x
    x = 982,497,103.87/31,256.96
  6. Step 6: Final answer
    x = 31,432.91

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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.