Home / 19,642.50-27,109.38-12,583.96

Finding the Fourth Proportional to 19,642.50, 27,109.38 and 12,583.96

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Solution

The fourth proportional to 19,642.50, 27,109.38 and 12,583.96 is: 17,367.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,642.50 : 27,109.38 = 12,583.96 : x
  2. Step 2: Convert to fraction form
    19,642.50/27,109.38 = 12,583.96/x
  3. Step 3: Cross multiply
    19,642.50x = 27,109.38 × 12,583.96
  4. Step 4: Simplify right side
    19,642.50x = 341,143,332.96
  5. Step 5: Solve for x
    x = 341,143,332.96/19,642.50
  6. Step 6: Final answer
    x = 17,367.61

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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.