Home / 38,204.20-57,312.08-11,911

Finding the Fourth Proportional to 38,204.20, 57,312.08 and 11,911

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Solution

The fourth proportional to 38,204.20, 57,312.08 and 11,911 is: 17,868.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,204.20 : 57,312.08 = 11,911 : x
  2. Step 2: Convert to fraction form
    38,204.20/57,312.08 = 11,911/x
  3. Step 3: Cross multiply
    38,204.20x = 57,312.08 × 11,911
  4. Step 4: Simplify right side
    38,204.20x = 682,644,184.88
  5. Step 5: Solve for x
    x = 682,644,184.88/38,204.20
  6. Step 6: Final answer
    x = 17,868.30

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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.