Home / 19,785.65-27,304.36-11,719.75

Finding the Fourth Proportional to 19,785.65, 27,304.36 and 11,719.75

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Solution

The fourth proportional to 19,785.65, 27,304.36 and 11,719.75 is: 16,173.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,785.65 : 27,304.36 = 11,719.75 : x
  2. Step 2: Convert to fraction form
    19,785.65/27,304.36 = 11,719.75/x
  3. Step 3: Cross multiply
    19,785.65x = 27,304.36 × 11,719.75
  4. Step 4: Simplify right side
    19,785.65x = 320,000,175.55
  5. Step 5: Solve for x
    x = 320,000,175.55/19,785.65
  6. Step 6: Final answer
    x = 16,173.35

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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.