Home / 31,151.58-46,709.42-21,302.79

Finding the Fourth Proportional to 31,151.58, 46,709.42 and 21,302.79

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Solution

The fourth proportional to 31,151.58, 46,709.42 and 21,302.79 is: 31,941.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,151.58 : 46,709.42 = 21,302.79 : x
  2. Step 2: Convert to fraction form
    31,151.58/46,709.42 = 21,302.79/x
  3. Step 3: Cross multiply
    31,151.58x = 46,709.42 × 21,302.79
  4. Step 4: Simplify right side
    31,151.58x = 995,040,858.77
  5. Step 5: Solve for x
    x = 995,040,858.77/31,151.58
  6. Step 6: Final answer
    x = 31,941.91

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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.