Home / 37,138.40-51,238.48-21,211.68

Finding the Fourth Proportional to 37,138.40, 51,238.48 and 21,211.68

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Solution

The fourth proportional to 37,138.40, 51,238.48 and 21,211.68 is: 29,264.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,138.40 : 51,238.48 = 21,211.68 : x
  2. Step 2: Convert to fraction form
    37,138.40/51,238.48 = 21,211.68/x
  3. Step 3: Cross multiply
    37,138.40x = 51,238.48 × 21,211.68
  4. Step 4: Simplify right side
    37,138.40x = 1,086,854,241.45
  5. Step 5: Solve for x
    x = 1,086,854,241.45/37,138.40
  6. Step 6: Final answer
    x = 29,264.97

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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.