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Finding the Fourth Proportional to 25,950.96, 35,775 and 18,486

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Solution

The fourth proportional to 25,950.96, 35,775 and 18,486 is: 25,484.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,950.96 : 35,775 = 18,486 : x
  2. Step 2: Convert to fraction form
    25,950.96/35,775 = 18,486/x
  3. Step 3: Cross multiply
    25,950.96x = 35,775 × 18,486
  4. Step 4: Simplify right side
    25,950.96x = 661,336,650
  5. Step 5: Solve for x
    x = 661,336,650/25,950.96
  6. Step 6: Final answer
    x = 25,484.09

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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.