Home / 37,129.85-51,234.47-21,215.33

Finding the Fourth Proportional to 37,129.85, 51,234.47 and 21,215.33

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Solution

The fourth proportional to 37,129.85, 51,234.47 and 21,215.33 is: 29,274.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,129.85 : 51,234.47 = 21,215.33 : x
  2. Step 2: Convert to fraction form
    37,129.85/51,234.47 = 21,215.33/x
  3. Step 3: Cross multiply
    37,129.85x = 51,234.47 × 21,215.33
  4. Step 4: Simplify right side
    37,129.85x = 1,086,956,188.43
  5. Step 5: Solve for x
    x = 1,086,956,188.43/37,129.85
  6. Step 6: Final answer
    x = 29,274.46

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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.