Home / 38,186.64-57,266.22-13,219.90

Finding the Fourth Proportional to 38,186.64, 57,266.22 and 13,219.90

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Solution

The fourth proportional to 38,186.64, 57,266.22 and 13,219.90 is: 19,825.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,186.64 : 57,266.22 = 13,219.90 : x
  2. Step 2: Convert to fraction form
    38,186.64/57,266.22 = 13,219.90/x
  3. Step 3: Cross multiply
    38,186.64x = 57,266.22 × 13,219.90
  4. Step 4: Simplify right side
    38,186.64x = 757,053,701.78
  5. Step 5: Solve for x
    x = 757,053,701.78/38,186.64
  6. Step 6: Final answer
    x = 19,825.09

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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.