Home / 22,238.09-30,689.33-12,679.37

Finding the Fourth Proportional to 22,238.09, 30,689.33 and 12,679.37

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Solution

The fourth proportional to 22,238.09, 30,689.33 and 12,679.37 is: 17,497.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,238.09 : 30,689.33 = 12,679.37 : x
  2. Step 2: Convert to fraction form
    22,238.09/30,689.33 = 12,679.37/x
  3. Step 3: Cross multiply
    22,238.09x = 30,689.33 × 12,679.37
  4. Step 4: Simplify right side
    22,238.09x = 389,121,370.12
  5. Step 5: Solve for x
    x = 389,121,370.12/22,238.09
  6. Step 6: Final answer
    x = 17,497.97

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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.