Home / 31,305.84-46,961.50-13,771.56

Finding the Fourth Proportional to 31,305.84, 46,961.50 and 13,771.56

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Solution

The fourth proportional to 31,305.84, 46,961.50 and 13,771.56 is: 20,658.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,305.84 : 46,961.50 = 13,771.56 : x
  2. Step 2: Convert to fraction form
    31,305.84/46,961.50 = 13,771.56/x
  3. Step 3: Cross multiply
    31,305.84x = 46,961.50 × 13,771.56
  4. Step 4: Simplify right side
    31,305.84x = 646,733,114.94
  5. Step 5: Solve for x
    x = 646,733,114.94/31,305.84
  6. Step 6: Final answer
    x = 20,658.55

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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.