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Finding the Fourth Proportional to 29,387.62, 40,555.40 and 16,640.46

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Solution

The fourth proportional to 29,387.62, 40,555.40 and 16,640.46 is: 22,964.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,387.62 : 40,555.40 = 16,640.46 : x
  2. Step 2: Convert to fraction form
    29,387.62/40,555.40 = 16,640.46/x
  3. Step 3: Cross multiply
    29,387.62x = 40,555.40 × 16,640.46
  4. Step 4: Simplify right side
    29,387.62x = 674,860,511.48
  5. Step 5: Solve for x
    x = 674,860,511.48/29,387.62
  6. Step 6: Final answer
    x = 22,964.11

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.