Home / 29,076.52-40,147.92-21,137.71

Finding the Fourth Proportional to 29,076.52, 40,147.92 and 21,137.71

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Solution

The fourth proportional to 29,076.52, 40,147.92 and 21,137.71 is: 29,186.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,076.52 : 40,147.92 = 21,137.71 : x
  2. Step 2: Convert to fraction form
    29,076.52/40,147.92 = 21,137.71/x
  3. Step 3: Cross multiply
    29,076.52x = 40,147.92 × 21,137.71
  4. Step 4: Simplify right side
    29,076.52x = 848,635,090.06
  5. Step 5: Solve for x
    x = 848,635,090.06/29,076.52
  6. Step 6: Final answer
    x = 29,186.27

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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.