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Finding the Fourth Proportional to 29,649.78, 40,950.29 and 20,201.94

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Solution

The fourth proportional to 29,649.78, 40,950.29 and 20,201.94 is: 27,901.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,649.78 : 40,950.29 = 20,201.94 : x
  2. Step 2: Convert to fraction form
    29,649.78/40,950.29 = 20,201.94/x
  3. Step 3: Cross multiply
    29,649.78x = 40,950.29 × 20,201.94
  4. Step 4: Simplify right side
    29,649.78x = 827,275,301.56
  5. Step 5: Solve for x
    x = 827,275,301.56/29,649.78
  6. Step 6: Final answer
    x = 27,901.57

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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.