Home / 22,309.12-30,786.56-12,237.60

Finding the Fourth Proportional to 22,309.12, 30,786.56 and 12,237.60

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Solution

The fourth proportional to 22,309.12, 30,786.56 and 12,237.60 is: 16,887.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,309.12 : 30,786.56 = 12,237.60 : x
  2. Step 2: Convert to fraction form
    22,309.12/30,786.56 = 12,237.60/x
  3. Step 3: Cross multiply
    22,309.12x = 30,786.56 × 12,237.60
  4. Step 4: Simplify right side
    22,309.12x = 376,753,606.66
  5. Step 5: Solve for x
    x = 376,753,606.66/22,309.12
  6. Step 6: Final answer
    x = 16,887.87

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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.