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Finding the Fourth Proportional to 29,548, 40,753.18 and 18,938.64

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Solution

The fourth proportional to 29,548, 40,753.18 and 18,938.64 is: 26,120.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,548 : 40,753.18 = 18,938.64 : x
  2. Step 2: Convert to fraction form
    29,548/40,753.18 = 18,938.64/x
  3. Step 3: Cross multiply
    29,548x = 40,753.18 × 18,938.64
  4. Step 4: Simplify right side
    29,548x = 771,809,804.88
  5. Step 5: Solve for x
    x = 771,809,804.88/29,548
  6. Step 6: Final answer
    x = 26,120.54

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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.