Home / 30,178.72-41,644.70-16,749.99

Finding the Fourth Proportional to 30,178.72, 41,644.70 and 16,749.99

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Solution

The fourth proportional to 30,178.72, 41,644.70 and 16,749.99 is: 23,113.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,178.72 : 41,644.70 = 16,749.99 : x
  2. Step 2: Convert to fraction form
    30,178.72/41,644.70 = 16,749.99/x
  3. Step 3: Cross multiply
    30,178.72x = 41,644.70 × 16,749.99
  4. Step 4: Simplify right side
    30,178.72x = 697,548,308.55
  5. Step 5: Solve for x
    x = 697,548,308.55/30,178.72
  6. Step 6: Final answer
    x = 23,113.91

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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.