Home / 30,178.70-41,644.65-16,749.96

Finding the Fourth Proportional to 30,178.70, 41,644.65 and 16,749.96

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Solution

The fourth proportional to 30,178.70, 41,644.65 and 16,749.96 is: 23,113.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,178.70 : 41,644.65 = 16,749.96 : x
  2. Step 2: Convert to fraction form
    30,178.70/41,644.65 = 16,749.96/x
  3. Step 3: Cross multiply
    30,178.70x = 41,644.65 × 16,749.96
  4. Step 4: Simplify right side
    30,178.70x = 697,546,034.14
  5. Step 5: Solve for x
    x = 697,546,034.14/30,178.70
  6. Step 6: Final answer
    x = 23,113.85

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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.