Home / 36,492.89-54,753.82-13,121.15

Finding the Fourth Proportional to 36,492.89, 54,753.82 and 13,121.15

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Solution

The fourth proportional to 36,492.89, 54,753.82 and 13,121.15 is: 19,686.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,492.89 : 54,753.82 = 13,121.15 : x
  2. Step 2: Convert to fraction form
    36,492.89/54,753.82 = 13,121.15/x
  3. Step 3: Cross multiply
    36,492.89x = 54,753.82 × 13,121.15
  4. Step 4: Simplify right side
    36,492.89x = 718,433,189.37
  5. Step 5: Solve for x
    x = 718,433,189.37/36,492.89
  6. Step 6: Final answer
    x = 19,686.93

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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.