Home / 37,638.09-51,940.47-21,722.54

Finding the Fourth Proportional to 37,638.09, 51,940.47 and 21,722.54

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Solution

The fourth proportional to 37,638.09, 51,940.47 and 21,722.54 is: 29,977.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,638.09 : 51,940.47 = 21,722.54 : x
  2. Step 2: Convert to fraction form
    37,638.09/51,940.47 = 21,722.54/x
  3. Step 3: Cross multiply
    37,638.09x = 51,940.47 × 21,722.54
  4. Step 4: Simplify right side
    37,638.09x = 1,128,278,937.19
  5. Step 5: Solve for x
    x = 1,128,278,937.19/37,638.09
  6. Step 6: Final answer
    x = 29,977.05

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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.