Home / 20,725.74-31,085.24-11,370.38

Finding the Fourth Proportional to 20,725.74, 31,085.24 and 11,370.38

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Solution

The fourth proportional to 20,725.74, 31,085.24 and 11,370.38 is: 17,053.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,725.74 : 31,085.24 = 11,370.38 : x
  2. Step 2: Convert to fraction form
    20,725.74/31,085.24 = 11,370.38/x
  3. Step 3: Cross multiply
    20,725.74x = 31,085.24 × 11,370.38
  4. Step 4: Simplify right side
    20,725.74x = 353,450,778.91
  5. Step 5: Solve for x
    x = 353,450,778.91/20,725.74
  6. Step 6: Final answer
    x = 17,053.71

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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.