Home / 19,690.36-29,502.67-13,836.49

Finding the Fourth Proportional to 19,690.36, 29,502.67 and 13,836.49

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Solution

The fourth proportional to 19,690.36, 29,502.67 and 13,836.49 is: 20,731.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,690.36 : 29,502.67 = 13,836.49 : x
  2. Step 2: Convert to fraction form
    19,690.36/29,502.67 = 13,836.49/x
  3. Step 3: Cross multiply
    19,690.36x = 29,502.67 × 13,836.49
  4. Step 4: Simplify right side
    19,690.36x = 408,213,398.43
  5. Step 5: Solve for x
    x = 408,213,398.43/19,690.36
  6. Step 6: Final answer
    x = 20,731.64

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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.