Home / 39,725.22-54,821.19-21,576.29

Finding the Fourth Proportional to 39,725.22, 54,821.19 and 21,576.29

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Solution

The fourth proportional to 39,725.22, 54,821.19 and 21,576.29 is: 29,775.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,725.22 : 54,821.19 = 21,576.29 : x
  2. Step 2: Convert to fraction form
    39,725.22/54,821.19 = 21,576.29/x
  3. Step 3: Cross multiply
    39,725.22x = 54,821.19 × 21,576.29
  4. Step 4: Simplify right side
    39,725.22x = 1,182,837,893.59
  5. Step 5: Solve for x
    x = 1,182,837,893.59/39,725.22
  6. Step 6: Final answer
    x = 29,775.49

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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.