Home / 30,251.31-45,379.13-8,064.57

Finding the Fourth Proportional to 30,251.31, 45,379.13 and 8,064.57

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Solution

The fourth proportional to 30,251.31, 45,379.13 and 8,064.57 is: 12,097.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,251.31 : 45,379.13 = 8,064.57 : x
  2. Step 2: Convert to fraction form
    30,251.31/45,379.13 = 8,064.57/x
  3. Step 3: Cross multiply
    30,251.31x = 45,379.13 × 8,064.57
  4. Step 4: Simplify right side
    30,251.31x = 365,963,170.42
  5. Step 5: Solve for x
    x = 365,963,170.42/30,251.31
  6. Step 6: Final answer
    x = 12,097.43

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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.