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Finding the Fourth Proportional to 29,350, 40,502.97 and 15,921.22

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Solution

The fourth proportional to 29,350, 40,502.97 and 15,921.22 is: 21,971.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,350 : 40,502.97 = 15,921.22 : x
  2. Step 2: Convert to fraction form
    29,350/40,502.97 = 15,921.22/x
  3. Step 3: Cross multiply
    29,350x = 40,502.97 × 15,921.22
  4. Step 4: Simplify right side
    29,350x = 644,856,696.02
  5. Step 5: Solve for x
    x = 644,856,696.02/29,350
  6. Step 6: Final answer
    x = 21,971.27

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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.