Home / 37,636.33-51,938.06-21,720.78

Finding the Fourth Proportional to 37,636.33, 51,938.06 and 21,720.78

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Solution

The fourth proportional to 37,636.33, 51,938.06 and 21,720.78 is: 29,974.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,636.33 : 51,938.06 = 21,720.78 : x
  2. Step 2: Convert to fraction form
    37,636.33/51,938.06 = 21,720.78/x
  3. Step 3: Cross multiply
    37,636.33x = 51,938.06 × 21,720.78
  4. Step 4: Simplify right side
    37,636.33x = 1,128,135,334.54
  5. Step 5: Solve for x
    x = 1,128,135,334.54/37,636.33
  6. Step 6: Final answer
    x = 29,974.63

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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.