Home / 22,309.39-30,786.42-12,237.74

Finding the Fourth Proportional to 22,309.39, 30,786.42 and 12,237.74

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Solution

The fourth proportional to 22,309.39, 30,786.42 and 12,237.74 is: 16,887.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,309.39 : 30,786.42 = 12,237.74 : x
  2. Step 2: Convert to fraction form
    22,309.39/30,786.42 = 12,237.74/x
  3. Step 3: Cross multiply
    22,309.39x = 30,786.42 × 12,237.74
  4. Step 4: Simplify right side
    22,309.39x = 376,755,988.37
  5. Step 5: Solve for x
    x = 376,755,988.37/22,309.39
  6. Step 6: Final answer
    x = 16,887.78

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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.