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Finding the Fourth Proportional to 26,425.78, 36,479.21 and 18,499.12

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Solution

The fourth proportional to 26,425.78, 36,479.21 and 18,499.12 is: 25,536.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,425.78 : 36,479.21 = 18,499.12 : x
  2. Step 2: Convert to fraction form
    26,425.78/36,479.21 = 18,499.12/x
  3. Step 3: Cross multiply
    26,425.78x = 36,479.21 × 18,499.12
  4. Step 4: Simplify right side
    26,425.78x = 674,833,283.30
  5. Step 5: Solve for x
    x = 674,833,283.30/26,425.78
  6. Step 6: Final answer
    x = 25,536.93

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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.