Home / 37,185.75-51,325.20-21,279.38

Finding the Fourth Proportional to 37,185.75, 51,325.20 and 21,279.38

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Solution

The fourth proportional to 37,185.75, 51,325.20 and 21,279.38 is: 29,370.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,185.75 : 51,325.20 = 21,279.38 : x
  2. Step 2: Convert to fraction form
    37,185.75/51,325.20 = 21,279.38/x
  3. Step 3: Cross multiply
    37,185.75x = 51,325.20 × 21,279.38
  4. Step 4: Simplify right side
    37,185.75x = 1,092,168,177.75
  5. Step 5: Solve for x
    x = 1,092,168,177.75/37,185.75
  6. Step 6: Final answer
    x = 29,370.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.