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Finding the Fourth Proportional to 30,394.81, 45,442.50 and 25,766.65

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Solution

The fourth proportional to 30,394.81, 45,442.50 and 25,766.65 is: 38,523.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,394.81 : 45,442.50 = 25,766.65 : x
  2. Step 2: Convert to fraction form
    30,394.81/45,442.50 = 25,766.65/x
  3. Step 3: Cross multiply
    30,394.81x = 45,442.50 × 25,766.65
  4. Step 4: Simplify right side
    30,394.81x = 1,170,900,992.63
  5. Step 5: Solve for x
    x = 1,170,900,992.63/30,394.81
  6. Step 6: Final answer
    x = 38,523.06

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.