Home / 22,240.09-30,687.06-12,679.80

Finding the Fourth Proportional to 22,240.09, 30,687.06 and 12,679.80

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Solution

The fourth proportional to 22,240.09, 30,687.06 and 12,679.80 is: 17,495.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,240.09 : 30,687.06 = 12,679.80 : x
  2. Step 2: Convert to fraction form
    22,240.09/30,687.06 = 12,679.80/x
  3. Step 3: Cross multiply
    22,240.09x = 30,687.06 × 12,679.80
  4. Step 4: Simplify right side
    22,240.09x = 389,105,783.39
  5. Step 5: Solve for x
    x = 389,105,783.39/22,240.09
  6. Step 6: Final answer
    x = 17,495.69

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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.