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Finding the Fourth Proportional to 29,250.88, 40,356 and 20,296

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Solution

The fourth proportional to 29,250.88, 40,356 and 20,296 is: 28,001.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,250.88 : 40,356 = 20,296 : x
  2. Step 2: Convert to fraction form
    29,250.88/40,356 = 20,296/x
  3. Step 3: Cross multiply
    29,250.88x = 40,356 × 20,296
  4. Step 4: Simplify right side
    29,250.88x = 819,065,376
  5. Step 5: Solve for x
    x = 819,065,376/29,250.88
  6. Step 6: Final answer
    x = 28,001.39

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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.