Home / 19,690.29-27,171.65-11,732.34

Finding the Fourth Proportional to 19,690.29, 27,171.65 and 11,732.34

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Solution

The fourth proportional to 19,690.29, 27,171.65 and 11,732.34 is: 16,190.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,690.29 : 27,171.65 = 11,732.34 : x
  2. Step 2: Convert to fraction form
    19,690.29/27,171.65 = 11,732.34/x
  3. Step 3: Cross multiply
    19,690.29x = 27,171.65 × 11,732.34
  4. Step 4: Simplify right side
    19,690.29x = 318,787,167.39
  5. Step 5: Solve for x
    x = 318,787,167.39/19,690.29
  6. Step 6: Final answer
    x = 16,190.07

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1.5x scale

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.