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Finding the Fourth Proportional to 30,239.06, 45,375 and 14,656.69

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Solution

The fourth proportional to 30,239.06, 45,375 and 14,656.69 is: 21,992.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,239.06 : 45,375 = 14,656.69 : x
  2. Step 2: Convert to fraction form
    30,239.06/45,375 = 14,656.69/x
  3. Step 3: Cross multiply
    30,239.06x = 45,375 × 14,656.69
  4. Step 4: Simplify right side
    30,239.06x = 665,047,195.31
  5. Step 5: Solve for x
    x = 665,047,195.31/30,239.06
  6. Step 6: Final answer
    x = 21,992.98

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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.